{"id":21743,"date":"2025-11-26T17:19:09","date_gmt":"2025-11-26T09:19:09","guid":{"rendered":"https:\/\/www.elepcb.com\/?p=21743"},"modified":"2025-11-26T17:19:09","modified_gmt":"2025-11-26T09:19:09","slug":"countersink-hole","status":"publish","type":"post","link":"https:\/\/www.elepcb.com\/it\/blog\/countersink-hole\/","title":{"rendered":"Guida ai fori svasati per PCB: tipi, usi e consigli pratici"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"21743\" class=\"elementor elementor-21743\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-59efb455 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"59efb455\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-31117e29\" data-id=\"31117e29\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-34edcfc0 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"34edcfc0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;exclude_headings_by_selector&quot;:[],&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__34edcfc0\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__34edcfc0\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__34edcfc0\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-791d4b63 elementor-widget elementor-widget-text-editor\" data-id=\"791d4b63\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"MMJ3dYqfMo488CxSgojc9hJ2nxR\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcnzwWQ93rSlNWaDOzmxWNHbg\">\n<div data-page-id=\"SN2QdUsRfo9ptVxuu01cmMU6nCK\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div data-page-id=\"PjvLdozttokd6JxbqMlck9o0ngg\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcnD6GQVSvuMfvrKwaFEBoavd\">\n<div data-page-id=\"IvVMdpqGXoW5mAx2lnEcTBVanze\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-WPYWdY2xOo66vWxlZDUchLMWnCc\">\n<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-Qi4JdNEs7ooXzexWItFcKPLMnwe\">\n<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcngYZVqZDy4LgfSfF8s5haeh\">Have you ever attempted to screw a screw into delicate woodwork, only to discover that the screw demands a tapered hole for a flush fit? The same principle applies to <a href=\"https:\/\/www.elepcb.com\/pcb-layout-design-process-and-guidelines\/\">PCB design<\/a>.<\/div>\n<div class=\"ace-line ace-line old-record-id-L4OWdlNvQoigtVxnUV8cenYknVd\">When securing a PCB to a workpiece, the heads of standard screws may protrude, creating an uneven surface. This is where <strong>countersink holes<\/strong> are used. Such holes enable<span style=\"color: #008000;\"> flat-head screws or rivets<\/span> to be embedded seamlessly into the board, thereby improving both its appearance and mechanical stability.<\/div>\n<div class=\"ace-line ace-line old-record-id-RNgcdxRVVo5x9bxJ5FRcQRhNnqh\">As this article proceeds, it covers everything regarding countersink holes in PCB design, definition, types, and applications, manufacturing considerations and comparison of countersink vs counterbore holes.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6598f962 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6598f962\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-18217549\" data-id=\"18217549\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b870758 elementor-widget elementor-widget-spacer\" data-id=\"b870758\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2b53cd9b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2b53cd9b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-71908f17\" data-id=\"71908f17\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1a4fa2ec elementor-widget elementor-widget-heading\" data-id=\"1a4fa2ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>What is a Countersink Hole?<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1ed85fa elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1ed85fa\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-921a683\" data-id=\"921a683\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2094965 elementor-widget elementor-widget-text-editor\" data-id=\"2094965\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"PjvLdozttokd6JxbqMlck9o0ngg\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcn9rWBNE0z7cGNNkCj3Vewue\">\n<div data-page-id=\"IvVMdpqGXoW5mAx2lnEcTBVanze\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-CUrldvH4lo98zkxV4rhcyjfHnWg\">\n<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-IZV1dOfeRov4Ffx357rcuRf1nIg\">\n<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcn1sFD6Cz2Gf5Xv3S33USQLb\">A countersink hole in a <a href=\"https:\/\/www.elepcb.com\/blog\/printed-circuit-board-types-and-their-uses\/\">printed circuit board (PCB)<\/a> serves as a unique hole shape with a conical section at the top surface. When an opening in the top surface of a drilled hole is enlarged into a sloped recess with the same slope as a flat-head screw, this creates a countersink hole.<\/div>\n<div class=\"ace-line ace-line old-record-id-TGCUdhAm7oVvDIx2k3aclID7n5b\">The screw head is left sticking out on the top of the board by standard holes. The countersunk hole enables the screw head to either be flat or shallow on the board, providing a better fit of the PCB. Countersink holes come in a variety of angles and depths depending on the screw used, as well as the mechanical rules of the <a href=\"https:\/\/www.elepcb.com\/pcb-assembly-process-and-services\/\">assembly<\/a>.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e2489f4 elementor-widget elementor-widget-image\" data-id=\"e2489f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"485\" height=\"275\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/PCB-through-hole-vs-countersink-vs-counterbored.jpeg\" class=\"attachment-large size-large wp-image-21745\" alt=\"PCB through hole vs countersink vs counterbore\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/PCB-through-hole-vs-countersink-vs-counterbored.jpeg 485w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/PCB-through-hole-vs-countersink-vs-counterbored-300x170.jpeg 300w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/PCB-through-hole-vs-countersink-vs-counterbored-18x10.jpeg 18w\" sizes=\"(max-width: 485px) 100vw, 485px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">PCB through hole vs countersink vs counterbore<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a33bac1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a33bac1\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9d1303b\" data-id=\"9d1303b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c01d68b elementor-widget elementor-widget-spacer\" data-id=\"c01d68b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c8f480 elementor-widget elementor-widget-heading\" data-id=\"0c8f480\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Types of PCB Countersink Hole<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c09ec5 elementor-widget elementor-widget-text-editor\" data-id=\"2c09ec5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcnVjCzj6tkdxJIOPKKcYBYIb\">PCB counter sink holes are generally categorized into different types on the basis of two factors, namely angle and shape. The following are some types of PCB counter sink holes.<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db9f529 elementor-widget elementor-widget-text-editor\" data-id=\"db9f529\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<h3 class=\"heading-3 ace-line old-record-id-doxcnIyk7ygPGfoWkpOUxtki4se\"><strong>By Angle<\/strong><\/h3>\n<div class=\"ace-line ace-line old-record-id-doxcnzn4JC6bIX2mk66LSVwoh0f\">The angle of the countersink determines how the screw will be screwed into the PCB. Most common angles include:<\/div>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-doxcnGH0cDYYVSJnhqhc0VjT6bf\" data-list=\"bullet\">\n<div><strong>82\u00b0 Countersink hole:<\/strong> Commonly used in the U.S., often used for flathead screws.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-doxcneMh1zfJ7C17IGuOeYmDFDg\" data-list=\"bullet\">\n<div><strong>90\u00b0 Countersink hole:<\/strong> Commonly used around the world, mostly in Europe and Asia.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-doxcn01xVEjAET7JNKBmP0o62lb\" data-list=\"bullet\">\n<div><strong>100\u00b0 Countersink hole:<\/strong> A wide bearing surface may reduce stress on the PCB.<\/div>\n<\/li>\n<\/ul>\n<div class=\"ace-line ace-line old-record-id-doxcnkwAgbTv973sjEpPfB31Ahh\">The angle is chosen depending on the screw standard\/requirement and mechanical design.<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6873f18 elementor-widget elementor-widget-image\" data-id=\"6873f18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"787\" height=\"201\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/angles-of-sountersink-holes.jpg\" class=\"attachment-large size-large wp-image-21747\" alt=\"\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/angles-of-sountersink-holes.jpg 787w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/angles-of-sountersink-holes-300x77.jpg 300w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/angles-of-sountersink-holes-768x196.jpg 768w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/angles-of-sountersink-holes-18x5.jpg 18w\" sizes=\"(max-width: 787px) 100vw, 787px\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7f8e0e elementor-widget elementor-widget-text-editor\" data-id=\"b7f8e0e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<h3 class=\"heading-3 ace-line old-record-id-doxcnTVc3MwgPp41HmlFhSmUy0c\"><strong>Based on Depth<\/strong><\/h3>\n<div class=\"ace-line ace-line old-record-id-doxcnmppJj0iVhCluFRDDKhwSpb\">Based on depth, PCB countersink holes are further categorized into two, as follows,<\/div>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-doxcnO19ilpwE3USH4KQndbTgbh\" data-list=\"bullet\">\n<div><strong>Through-Hole<\/strong><strong> Countersink:<\/strong> The conical cut is continued until it reaches a hole that has been drilled through the board so that the screw can fully pass through it.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-doxcnNMPqbFReeZqFckpXnTtfNc\" data-list=\"bullet\">\n<div><strong>Blind Countersink:<\/strong> It is a cut for which the screw fulfills every requirement of the countersink part at the screw head, but does not extend to the other side of the PCB.<\/div>\n<\/li>\n<\/ul>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d57f4ab elementor-widget elementor-widget-text-editor\" data-id=\"d57f4ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<h3 class=\"ace-line ace-line old-record-id-doxcnbVFelMtdVeJeohXKMB8pGg\"><strong> Asymmetrical vs. Symmetrical Counter sink<\/strong><\/h3>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-doxcnFk7sv2K1awHPRPWP0FC0gc\" data-list=\"bullet\">\n<div><strong>Symmetrical Countersink Hole:<\/strong> Perfectly symmetrical with equal angles on both sides of the hole drilled.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-doxcnr6ZlNdwCWXJb0cIAvLyPib\" data-list=\"bullet\">\n<div><strong>Asymmetrical Countersink Hole:<\/strong> Asymmetrical Countersink Hole is applied when the screw or part needs an abnormal seating position.<\/div>\n<\/li>\n<\/ul>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b0274b6 elementor-widget elementor-widget-spacer\" data-id=\"b0274b6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a7d6279 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a7d6279\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5e05198\" data-id=\"5e05198\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3ea3dfb elementor-widget elementor-widget-heading\" data-id=\"3ea3dfb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><strong>Why Use Countersink Holes?<\/strong><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2582d42 elementor-widget elementor-widget-text-editor\" data-id=\"2582d42\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"IvVMdpqGXoW5mAx2lnEcTBVanze\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcnTlK6U600eYqHBn2DVDHiBh\">\n<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-HjjDdeEfGopFf2x76yZc3vLFnWd\">\n<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-EV6OdptWRoDrS5xrxexcVrkLnHd\">Countersunk holes offer the following advantages when securing workpieces:<\/div>\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-doxcnN8haQLZCumKZo63mdZQYOe\" data-list=\"bullet\">\n<div><strong>Flush Surface: <\/strong>The main advantage of a countersink hole is that screws, especially the flathead type, are flush or slightly indented on the <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-surface-finish\/\">PCB surface<\/a>. This will avoid protrusion and keep the surface of the board smooth and even.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-doxcnUf4aSCIbam01fJ6DVIAiS5\" data-list=\"bullet\">\n<div><strong>Improved Aesthetics:<\/strong> Countersinking helps to provide a more <span style=\"color: #008000;\">professional and elegant appearance<\/span> to electronic assemblies. The PCB gets a clean finish by removing the raised screw heads, thus being highly essential in products that are consumer-facing, since appearance counts.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-doxcnt2oCvBvfo5pqhQ26bY2oXb\" data-list=\"bullet\">\n<div><strong>Mechanical Stability:<\/strong> A countersink hole forms a natural point of screw fixation in PCB, so that screws are securely fixed in place. This enhances the <span style=\"color: #008000;\">mechanical stability<\/span> of the circuit board, which reduces the risks of loosening with time.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-doxcnwveiJD6en3c1HMR82vnX2e\" data-list=\"bullet\">\n<div><strong>Prevents Interference:<\/strong> Space is often restricted in most assemblies, and protruding screws may cause contact with other parts or <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-connectors\/\">connectors<\/a>. Countersink holes can be used to avoid this problem by embedding the screw head, making it smooth in its integration with the other parts.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-doxcnSkMLRW2w5YoQF4CMv284Fd\" data-list=\"bullet\">\n<div><strong>Space <\/strong><strong>Optimization<\/strong><strong>:<\/strong> In small-sized designs, a millimeter of clearance is important. Countersinking allows <span style=\"color: #008000;\">maximum utilization of available space<\/span>, and this makes it suitable in cases where the board fits in housing or enclosures that are tight.<\/div>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c6f8393 elementor-widget elementor-widget-spacer\" data-id=\"c6f8393\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4c51675 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4c51675\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d59a6ce\" data-id=\"d59a6ce\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a8af3ff elementor-widget elementor-widget-heading\" data-id=\"a8af3ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>How to Manufacture a Countersink Hole<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-006434f elementor-widget elementor-widget-text-editor\" data-id=\"006434f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"IvVMdpqGXoW5mAx2lnEcTBVanze\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-CUy2dfPsxoLKx3xyQnpcLjaonob\">\n<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-UUpNdkURlo2IfrxaJkQc9DicnVd\">\n<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-Avy9dcJqKomTsKxt8ATc5565nff\">Achieving a perfectly countersunk hole is no easy feat. The main challenge lies in achieving precise positioning and depth control during secondary <a href=\"https:\/\/www.elepcb.com\/blog\/ins-and-out-of-pcb-drilling-revealed\/\">drilling<\/a>. The most reliable and widely used process is the <em><strong>two-step drilling method.<\/strong><\/em><\/div>\n<ol>\n<li class=\"ace-line ace-line old-record-id-PLgEdxdDboFnEQxqf6Yc2pi8nGg\">First, a specialized flat-tip or countersink bit with selectable angles (such as 82\u00b0, 90\u00b0, 100\u00b0, 120\u00b0 or 140\u00b0) is used to create the upper countersink groove.<\/li>\n<li class=\"ace-line ace-line old-record-id-QX5gdW8qsokpzDxNRgRcul6tnQg\">Next, a standard round drill bit is used to drill the lower through-hole precisely at the centre of the countersink groove. The essence of these two steps lies in using the same positioning coordinate system (typically the L-marker on the PCB workbench).<\/li>\n<\/ol>\n<div class=\"ace-line ace-line old-record-id-Uipqd0znnoBtdixMolDcqg9rnc1\">Ideally, both steps should be completed <span style=\"color: #008000;\">consecutively in a single setup<\/span> to avoid centre misalignment caused by minor board expansion\/contraction or repositioning. Any slight deviation (e.g. unilateral deviation exceeding 0.1 mm) may result in enlargement of the countersink hole, damaged hole walls or even complete rejection of the board.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2111e52e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2111e52e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-668b01c0\" data-id=\"668b01c0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d24bc64 elementor-widget elementor-widget-spacer\" data-id=\"d24bc64\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-37342720 elementor-widget elementor-widget-heading\" data-id=\"37342720\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Manufacturing Requirements and Considerations<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e7e1977 elementor-widget elementor-widget-text-editor\" data-id=\"e7e1977\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-CfRodbvorozSB9xLeescRYHrnBb\">\n<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcnMABE7jR21se56ufMJP19eg\">There are a lot of key factors that must be kept in mind while designing and <a href=\"https:\/\/www.elepcb.com\/pcb-manufacturing-process-and-services\/\">manufacturing<\/a> the countersink holes in PCB, as countersink holes require utmost precision in alignment. Some of the factors are jotted down:<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62d2961 elementor-widget elementor-widget-text-editor\" data-id=\"62d2961\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-KHS9duWI7o8u0rxpBDscUJyYnmf\" data-list=\"bullet\">\n<div><strong>Hole position and orientation:<\/strong> clearly specify the location of the holes and indicate whether the countersunk holes are on the top, bottom or sides of the PCB.<\/div>\n<\/li>\n<\/ul>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc8946c elementor-widget elementor-widget-text-editor\" data-id=\"bc8946c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-doxcnURrzkhilQSCNxLQNfIWCae\" data-list=\"bullet\">\n<div><strong>Clearly Specify Angle and Diameter:<\/strong> PCB designers must accurately define the diameter and angle of the countersink hole in the PCB design file, which will be sent to the PCB fabricator. Key parameters include:<\/div>\n<ul class=\"list-bullet2\">\n<li class=\"ace-line ace-line old-record-id-GCBfdAxfaoOEBixHTqqcyXM7nvc\" data-list=\"bullet\">\n<div><em><strong>Through-hole diamete<\/strong><\/em>r: define the final size of the main hole, ensuring it matches the screw shaft diameter for a proper fit.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-LPDhdv6fCoUwYnxm8DScUtTRnQc\" data-list=\"bullet\">\n<div><strong><em>Countersink diameter:<\/em><\/strong> This should be slightly larger than the screw head diameter to allow clearance. For instance, a 6-millimetre screw head might need a 6.5-millimetre countersink to prevent it from getting stuck.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-VKVcdprd6osdEPx4tDKcKmsrnLc\" data-list=\"bullet\">\n<div><em><strong>Countersink angle:<\/strong><\/em> provide the desired angle, typically 82\u00b0 or 90\u00b0, to match standard flat-head screws.<\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-IM9Wd9ycHosaSYxcDCpc27sYnLe\" data-list=\"bullet\">\n<div><em><strong>Countersink depth:<\/strong><\/em> If precise depth is required, specify the depth numerically.<\/div>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2dfa490 elementor-widget elementor-widget-text-editor\" data-id=\"2dfa490\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-UmvvdoLuKoRMufxXlQVc3zzKnWb\" data-list=\"bullet\">\n<div><strong>Plated or unplated countersunk holes: <\/strong>In many cases, PCB mounting holes are <span style=\"color: #008000;\">non-plated through holes<\/span> (NPTH), meaning the <a href=\"https:\/\/www.elepcb.com\/pcb-products\/ele-copper-pcb-board\/\">copper<\/a> plating does not extend throughout the entire hole. Countersunk holes can be treated similarly, but plating may be required in certain situations. For example, if a screw is intended to form an electrical connection, such as grounding the PCB to the chassis, plating is necessary to ensure the screw can make contact with the copper.<\/div>\n<\/li>\n<\/ul>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5846cf elementor-widget elementor-widget-text-editor\" data-id=\"a5846cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-MhAQdt9DzobeXCxbMtTc2cxtnzg\" data-list=\"bullet\">\n<div><strong>Tolerance<\/strong><strong>: <\/strong>It is recommended to ensure that screws fit properly in the countersink hole by maintaining precise tolerances to avoid any mismatch. The standard countersink <span style=\"color: #008000;\">hole depth tolerance<\/span> is <span style=\"color: #008000;\">\u00b10.05 mm<\/span>, with an <span style=\"color: #008000;\">angle tolerance of \u00b11\u00b0.<\/span><\/div>\n<\/li>\n<li class=\"ace-line ace-line old-record-id-doxcnINj6tg41KOLnXq1A2zGcxh\" data-list=\"bullet\">\n<div><strong>PCB<\/strong><strong> Thickness:<\/strong> The <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-knowledge\/pcb-trace-thickness\/\">thickness of the PCB<\/a> is an important countersink hole manufacturing consideration that PCB designers must address while designing countersink holes in PCBs. If the PCB is not thick enough and the designer uses a countersink hole in that PCB, then this <span style=\"color: #800000;\">weakens<\/span> the fabricated PCB.<\/div>\n<\/li>\n<\/ul>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60f8bf5 elementor-widget elementor-widget-text-editor\" data-id=\"60f8bf5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<ul class=\"list-bullet1\">\n<li class=\"ace-line ace-line old-record-id-doxcnmmk3BaN8bjZan3Xg84iPIc\" data-list=\"bullet\">\n<div><strong>Material Consideration: <\/strong>Drilling a countersink hole in a fabricated PCB imposes stress in certain areas in the PCB or even leads to a stress crack in the PCB. For this reason, <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-knowledge\/what-is-fr-4-material-in-pcb-fabrication\/\">FR-4<\/a> material is used in the fabrication processes of PCBs. If any other special <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-substrate-materials\/\">material<\/a> or <a href=\"https:\/\/www.elepcb.com\/blog\/pcb-knowledge\/pcb-laminate-material-process\/\">laminates<\/a> are used in PCB fabrication, then such a PCB may require additional care.<\/div>\n<div class=\"ace-line ace-line old-record-id-FpikdUDV2o93OAxrM4KcEhDXntg\">\u00a0Additionally, to protect exposed materials and ensure the longevity of the PCB, <a href=\"https:\/\/www.elepcb.com\/blog\/top-10-china-pcb-manufacturers\/\">manufacturers<\/a> may apply coatings or surface treatments to prevent oxidation. When machining countersunk holes in extremely thin circuit boards, designers must ensure that there is sufficient material beneath the hole to avoid compromising the PCB&#8217;s structural integrity.<\/div>\n<\/li>\n<\/ul>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b75d980 elementor-widget elementor-widget-text-editor\" data-id=\"b75d980\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<ul>\n<li><strong>Communication with <\/strong><strong>PCB<\/strong><strong> Manufacturers: <\/strong>It is important to communicate clearly with PCB fabricators regarding each and every detail of countersink, along with PCB requirements, to ensure optimal manufacturability.\n<ul>\n<li>\u00a0<strong>A clear requirement example:<\/strong> Holes A and B: Drilled 3.00 mm \u00b10.05, countersunk 6.00 mm \u00b10.1 to the top surface at 90\u00b0. Unplated.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-22189ec elementor-widget elementor-widget-spacer\" data-id=\"22189ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bd9981e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bd9981e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7b1ae5b\" data-id=\"7b1ae5b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6e36a20 elementor-widget elementor-widget-heading\" data-id=\"6e36a20\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Countersink vs Counterbore Hole<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be042ce elementor-widget elementor-widget-image\" data-id=\"be042ce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"550\" height=\"344\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/countersink-hole-vs-counterbored-hole.jpg\" class=\"attachment-large size-large wp-image-21746\" alt=\"countersink hole vs counterbored hole\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/countersink-hole-vs-counterbored-hole.jpg 550w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/countersink-hole-vs-counterbored-hole-300x188.jpg 300w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2025\/11\/countersink-hole-vs-counterbored-hole-18x12.jpg 18w\" sizes=\"(max-width: 550px) 100vw, 550px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ebd940 elementor-widget elementor-widget-text-editor\" data-id=\"6ebd940\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"A5AldwZDtoPcSgxUuyfcA5WRnNf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcnzY1qi4DNTx2SJFExTHHSNh\">\n<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcnnEijzM52422xIupVIs9iBc\">The terms <strong>countersink<\/strong> and <strong>counterbore<\/strong> are often confused, but they are different.<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2141d27 elementor-widget elementor-widget-text-editor\" data-id=\"2141d27\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\">\n<div>\n<table class=\"ace-table\" data-ace-table-col-widths=\"127;319;392\"><colgroup><col width=\"127\" \/><col width=\"319\" \/><col width=\"392\" \/><\/colgroup>\n<tbody>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnjXvmqxsKA3F7TPx4OeUF4b\"><strong>Feature<\/strong><\/div>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnn7hMUpomH9MDT3vqqtnHIw\"><strong>Countersink Hole<\/strong><\/div>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnSDlLW74UKFnyfpWQXuUjrh\"><strong>Counterbore Hole<\/strong><\/div>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnvKaF1zmpr2TAHSOXXbJwSf\"><strong>Shape<\/strong><\/div>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnnnrHXnaOLg7M5594TFdiLg\">Conical recess<\/div>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcn3dEqoZbMMDrJSJsOHaBjBU\">Cylindrical recess<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnao4qsKaNZYGrVXrgIqvOTf\"><strong>Screw Type<\/strong><\/div>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnXmmR7oDeDFfooxibcUS8Ie\">Flathead screws<\/div>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcn6Xfw0yuq8ZnNT7zO5gQLCe\">Socket head or roundhead screws<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnInywf3Ruyh2Qqsaba4E8cb\"><strong>Surface Result<\/strong><\/div>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcn3rCZl5aJ3uwapXXOmKQ16b\">Screw head sits flush with or below the PCB surface<\/div>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnX0ZPPHUZhl52oqMDYFSeye\">Screw head sits flat but not flush (recessed in a cylindrical cavity)<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcn7edTmIVidlO5Cp89OI0pxh\"><strong>Applications<\/strong><\/div>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnIr5rqjd3vmSYTeEHL3FZ6d\">Slim designs, aesthetics, and flush mounting<\/div>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<div class=\"ace-line ace-line old-record-id-doxcnUMpY9ZIvBs5iJuDKLH2lvd\">Heavy-duty assemblies requiring deeper seating<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1f4af48 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1f4af48\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-92ada48\" data-id=\"92ada48\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-88ce059 elementor-widget elementor-widget-heading\" data-id=\"88ce059\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>Conclusion<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da8f021 elementor-widget elementor-widget-text-editor\" data-id=\"da8f021\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-doxcn89HjuEW8aWic5mAKVbc8vw\">Countersink holes could appear to be a minor consideration when it comes to PCB design, yet they can have huge implications in <span style=\"color: #008000;\">functionality, durability, and appearance<\/span>. These features are essential to the needs of space-constrained applications, or when design accuracy is vital (such as flush mounting or mechanical stability).<\/div>\n<div class=\"ace-line ace-line old-record-id-doxcnzwLWZBu1M56hqsXmLfnGYf\"><strong><a href=\"https:\/\/www.elepcb.com\" data-lark-is-custom=\"true\">ELEPCB<\/a><\/strong> can assist you in your next PCB project when you are unsure of whether you should use countersink holes or not. <em><strong><a href=\"https:\/\/www.elepcb.com\/contact-us\/\" data-lark-is-custom=\"true\">Contact us<\/a> <\/strong><\/em>and have the <span style=\"color: #008000;\">required design and manufacturing of a professional PCB<\/span> that perfectly suits you.<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-688ba04c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"688ba04c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3c2fc7ea\" data-id=\"3c2fc7ea\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-00fccbf elementor-widget elementor-widget-heading\" data-id=\"00fccbf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><b>FAQ<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f9f4f7b elementor-widget elementor-widget-toggle\" data-id=\"6f9f4f7b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"toggle.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1871\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1871\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q1: What are the most frequent angles of countersink holes in PCBs?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1871\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1871\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<p>A1: Depending on the screw standard and application, the most frequent countersink angles are 82\u00b0, 90\u00b0, and 100\u00b0.<\/p>\n<\/div>\n<\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1872\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1872\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q2: Is it possible to create countersink holes on both sides of the PCB?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1872\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1872\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BWQ0dJKPTovPhYx6XTfc9xMAngc\">\n<div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-ZGjidQpZuouEMuxnruBcR4Ujndg\">A2: Yes, they may be unilateral or bilateral, depending on whether the screws are going to be attached to one side or both sides.<br \/><br \/><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1873\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-1873\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q3: What do counter sink and counterbore mean?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1873\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-1873\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\" old-record-id-VIvSds1JnokGWWxGglucirLXn4O\">\n<div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XizidTe9soWkg0xX1N9cjCycnJd\">A3: Countersink holes are conical, intended to receive flathead screws, whereas counterbore holes are cylindrical, intended to receive socket head screws.<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1874\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-1874\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q4: Which standards or guidelines should I refer to regarding countersunk holes?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1874\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-1874\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\" old-record-id-VIvSds1JnokGWWxGglucirLXn4O\">\n<div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XizidTe9soWkg0xX1N9cjCycnJd\">\n<p>A4: The IPC-2221\/IPC-2222 standards cover general PCB design requirements. While they do not contain extensive sections on countersinks, they do clearly document mechanical characteristics and provide recommended tolerances.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1875\" class=\"elementor-tab-title\" data-tab=\"5\" role=\"button\" aria-controls=\"elementor-tab-content-1875\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q5: How do I specify countersunk holes in my PCB manufacturing files?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1875\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"5\" role=\"region\" aria-labelledby=\"elementor-tab-title-1875\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\" old-record-id-VIvSds1JnokGWWxGglucirLXn4O\">\n<div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XizidTe9soWkg0xX1N9cjCycnJd\">\n<p>A5: PCB manufacturing files require additional information about countersunk holes. You should perform one or more of the following actions:<\/p>\n<div data-page-id=\"W0NLdprAJoBJO7xxJjWcKNxVneb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-L538duOHgocrqQxlOf6cFiPgnjn\">Include a manufacturing drawing that clearly marks the countersunk holes and specifies the required countersink diameter and angle (e.g. &#8216;Top countersink 5.5 mm x 90\u00b0, Hole #10&#8217;). Using the \u2335 or \u201cV\u201d countersink symbol to abbreviate countersunk holes is common practice.<\/div>\n<div class=\"ace-line ace-line old-record-id-MxdVdHPCGoFh2gxHeujcjY3nn2g\">If your CAD software supports it, generate a separate drilling file for countersunk holes (sometimes called a &#8216;counterdrill&#8217; file). This file will contain the coordinates and tool dimensions for the countersink drill. Communicate explicitly with the manufacturer.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1876\" class=\"elementor-tab-title\" data-tab=\"6\" role=\"button\" aria-controls=\"elementor-tab-content-1876\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><i class=\"fas fa-caret-right\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><i class=\"elementor-toggle-icon-opened fas fa-caret-up\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">Q6: Do countersink holes cost a lot to produce?<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1876\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"6\" role=\"region\" aria-labelledby=\"elementor-tab-title-1876\"><div data-page-id=\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\" old-record-id-VIvSds1JnokGWWxGglucirLXn4O\">\n<div data-page-id=\"PzvadCyLxoGC6axfsi0cBB2BnWf\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XizidTe9soWkg0xX1N9cjCycnJd\">\n<p>A6: They incur certain machining expenses and complexity, but when ordered appropriately, the payoffs exceed the incremental cost in assemblies of precision.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Q1: What are the most frequent angles of countersink holes in PCBs?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<div data-page-id=\\\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div data-page-id=\\\"PzvadCyLxoGC6axfsi0cBB2BnWf\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<p>A1: Depending on the screw standard and application, the most frequent countersink angles are 82\\u00b0, 90\\u00b0, and 100\\u00b0.<\\\/p>\\n<\\\/div>\\n<\\\/div>\"}},{\"@type\":\"Question\",\"name\":\"Q2: Is it possible to create countersink holes on both sides of the PCB?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<div data-page-id=\\\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\"ace-line ace-line old-record-id-BWQ0dJKPTovPhYx6XTfc9xMAngc\\\">\\n<div data-page-id=\\\"PzvadCyLxoGC6axfsi0cBB2BnWf\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\"ace-line ace-line old-record-id-ZGjidQpZuouEMuxnruBcR4Ujndg\\\">A2: Yes, they may be unilateral or bilateral, depending on whether the screws are going to be attached to one side or both sides.<br \\\/><br \\\/><\\\/div>\\n<\\\/div>\\n<\\\/div>\\n<\\\/div>\"}},{\"@type\":\"Question\",\"name\":\"Q3: What do counter sink and counterbore mean?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<div data-page-id=\\\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\" old-record-id-VIvSds1JnokGWWxGglucirLXn4O\\\">\\n<div data-page-id=\\\"PzvadCyLxoGC6axfsi0cBB2BnWf\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\"ace-line ace-line old-record-id-XizidTe9soWkg0xX1N9cjCycnJd\\\">A3: Countersink holes are conical, intended to receive flathead screws, whereas counterbore holes are cylindrical, intended to receive socket head screws.<\\\/div>\\n<\\\/div>\\n<\\\/div>\\n<\\\/div>\"}},{\"@type\":\"Question\",\"name\":\"Q4: Which standards or guidelines should I refer to regarding countersunk holes?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<div data-page-id=\\\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\" old-record-id-VIvSds1JnokGWWxGglucirLXn4O\\\">\\n<div data-page-id=\\\"PzvadCyLxoGC6axfsi0cBB2BnWf\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\"ace-line ace-line old-record-id-XizidTe9soWkg0xX1N9cjCycnJd\\\">\\n<p>A4: The IPC-2221\\\/IPC-2222 standards cover general PCB design requirements. While they do not contain extensive sections on countersinks, they do clearly document mechanical characteristics and provide recommended tolerances.<\\\/p>\\n<\\\/div>\\n<\\\/div>\\n<\\\/div>\\n<\\\/div>\"}},{\"@type\":\"Question\",\"name\":\"Q5: How do I specify countersunk holes in my PCB manufacturing files?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<div data-page-id=\\\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\" old-record-id-VIvSds1JnokGWWxGglucirLXn4O\\\">\\n<div data-page-id=\\\"PzvadCyLxoGC6axfsi0cBB2BnWf\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\"ace-line ace-line old-record-id-XizidTe9soWkg0xX1N9cjCycnJd\\\">\\n<p>A5: PCB manufacturing files require additional information about countersunk holes. You should perform one or more of the following actions:<\\\/p>\\n<div data-page-id=\\\"W0NLdprAJoBJO7xxJjWcKNxVneb\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\"ace-line ace-line old-record-id-L538duOHgocrqQxlOf6cFiPgnjn\\\">Include a manufacturing drawing that clearly marks the countersunk holes and specifies the required countersink diameter and angle (e.g. &#8216;Top countersink 5.5 mm x 90\\u00b0, Hole #10&#8217;). Using the \\u2335 or \\u201cV\\u201d countersink symbol to abbreviate countersunk holes is common practice.<\\\/div>\\n<div class=\\\"ace-line ace-line old-record-id-MxdVdHPCGoFh2gxHeujcjY3nn2g\\\">If your CAD software supports it, generate a separate drilling file for countersunk holes (sometimes called a &#8216;counterdrill&#8217; file). This file will contain the coordinates and tool dimensions for the countersink drill. Communicate explicitly with the manufacturer.<\\\/div>\\n<\\\/div>\\n<\\\/div>\\n<\\\/div>\\n<\\\/div>\\n<\\\/div>\"}},{\"@type\":\"Question\",\"name\":\"Q6: Do countersink holes cost a lot to produce?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<div data-page-id=\\\"K5cQdPyqAoIVz9xiCVzcrjK4n2e\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\" old-record-id-VIvSds1JnokGWWxGglucirLXn4O\\\">\\n<div data-page-id=\\\"PzvadCyLxoGC6axfsi0cBB2BnWf\\\" data-lark-html-role=\\\"root\\\" data-docx-has-block-data=\\\"false\\\">\\n<div class=\\\"ace-line ace-line old-record-id-XizidTe9soWkg0xX1N9cjCycnJd\\\">\\n<p>A6: They incur certain machining expenses and complexity, but when ordered appropriately, the payoffs exceed the incremental cost in assemblies of precision.<\\\/p>\\n<\\\/div>\\n<\\\/div>\\n<\\\/div>\\n<\\\/div>\"}}]}<\/script>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-72b68d12 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"72b68d12\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-46a34694\" data-id=\"46a34694\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7f5dff4 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"7f5dff4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-651c3920 elementor-widget elementor-widget-shortcode\" data-id=\"651c3920\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\t\t<div data-elementor-type=\"section\" data-elementor-id=\"2056\" class=\"elementor elementor-2056\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6012901 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6012901\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-afac9b2\" data-id=\"afac9b2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b379375 elementor-widget elementor-widget-image\" data-id=\"b379375\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.elepcb.com\/pcb-products\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-768x1024.jpg\" class=\"attachment-large size-large wp-image-15779\" alt=\"pcb and pcba products 1\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-768x1024.jpg 768w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-225x300.jpg 225w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-1152x1536.jpg 1152w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-1536x2048.jpg 1536w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-2-scaled.jpg 1920w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-8968fc1\" data-id=\"8968fc1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c0c3b5d elementor-widget elementor-widget-image\" data-id=\"c0c3b5d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.elepcb.com\/contact-us\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/contact-us-1024x683.jpg\" class=\"attachment-large size-large wp-image-15819\" alt=\"contact us\" srcset=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/contact-us-1024x683.jpg 1024w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/contact-us-300x200.jpg 300w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/contact-us-768x512.jpg 768w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/contact-us-1536x1024.jpg 1536w, https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/contact-us-2048x1365.jpg 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-a17958a\" data-id=\"a17958a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4326577 elementor-widget elementor-widget-image\" data-id=\"4326577\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.elepcb.com\/pcb-products\/\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.elepcb.com\/wp-content\/uploads\/2023\/03\/white-bg-1-768x1024.jpg\" class=\"attachment-large 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class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-30e73de5\" data-id=\"30e73de5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-6e6f562b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6e6f562b\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-1aae434c\" data-id=\"1aae434c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div 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production, increasing speed to market by 20%.<\/p><p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Contact us below to start discussing your project with our Technical Experts today.<\/p><p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Whether you already have Gerber Files, submit a\u00a0Quick Quote\u00a0for free estimate.<\/p><\/div><\/form><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5782c747 elementor-button-align-center elementor-widget elementor-widget-form\" data-id=\"5782c747\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t<div 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class=\"elementor-field elementor-size-sm  elementor-field-textual\" pattern=\"[0-9()#&amp;+*-=.]+\" title=\"Csak a sz\u00e1mok \u00e9s telefonkarakterek (#, -, * stb.) fogadhat\u00f3k el.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-checkbox elementor-field-group elementor-column elementor-field-group-field_c168eb1 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_c168eb1\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tI am interested in (select all that apply)\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<div class=\"elementor-field-subgroup  elementor-subgroup-inline\"><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Rigid PCBs\" id=\"form-field-field_c168eb1-0\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-0\">Rigid PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Flexible Printed Circuit Boards\" id=\"form-field-field_c168eb1-1\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-1\">Flexible Printed Circuit Boards<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Flexible Aluminum PCBs\" id=\"form-field-field_c168eb1-2\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-2\">Flexible Aluminum PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Flexible PCB Microcircuits\" id=\"form-field-field_c168eb1-3\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-3\">Flexible PCB Microcircuits<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Ultra-Thin Flexible PCBs\" id=\"form-field-field_c168eb1-4\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-4\">Ultra-Thin Flexible PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Rigid-Flex\" id=\"form-field-field_c168eb1-5\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-5\">Rigid-Flex<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Ceramic Printed Circuit Boards\" id=\"form-field-field_c168eb1-6\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-6\">Ceramic Printed Circuit Boards<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Aluminum Printed Circuit Boards\" id=\"form-field-field_c168eb1-7\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-7\">Aluminum Printed Circuit Boards<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Copper Core\" id=\"form-field-field_c168eb1-8\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-8\">Copper Core<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"IC Substrates &amp; Interposer\" id=\"form-field-field_c168eb1-9\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-9\">IC Substrates & Interposer<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"High TG PCBs\" id=\"form-field-field_c168eb1-10\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-10\">High TG PCBs<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Heavy Copper\" id=\"form-field-field_c168eb1-11\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-11\">Heavy Copper<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"PCB Assembly\" id=\"form-field-field_c168eb1-12\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-12\">PCB Assembly<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Components Sourcing\" id=\"form-field-field_c168eb1-13\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-13\">Components Sourcing<\/label><\/span><span class=\"elementor-field-option\"><input type=\"checkbox\" value=\"Other\" id=\"form-field-field_c168eb1-14\" name=\"form_fields[field_c168eb1][]\"> <label for=\"form-field-field_c168eb1-14\">Other<\/label><\/span><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-upload elementor-field-group elementor-column elementor-field-group-field_2cea676 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_2cea676\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tUpload Your Files (Optional)\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input type=\"file\" name=\"form_fields[field_2cea676]\" id=\"form-field-field_2cea676\" class=\"elementor-field elementor-size-sm  elementor-upload-field\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-field_9ceb2c8 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_9ceb2c8\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[field_9ceb2c8]\" id=\"form-field-field_9ceb2c8\" rows=\"4\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Submit<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-123957a9\" data-id=\"123957a9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Table of Contents Have you ever attempted to screw a screw into delicate woodwork, only to discover that the screw demands a tapered hole for a flush fit? The same principle applies to PCB design. When securing a PCB to a workpiece, the heads of standard screws may protrude, creating an uneven surface. This is [&hellip;]<\/p>\n","protected":false},"author":26,"featured_media":21744,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[134,89],"class_list":["post-21743","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-pcb-design","tag-pcb-via"],"_links":{"self":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts\/21743","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/comments?post=21743"}],"version-history":[{"count":8,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts\/21743\/revisions"}],"predecessor-version":[{"id":21755,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/posts\/21743\/revisions\/21755"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/media\/21744"}],"wp:attachment":[{"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/media?parent=21743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/categories?post=21743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.elepcb.com\/it\/wp-json\/wp\/v2\/tags?post=21743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}