{"id":6797,"date":"2023-12-21T14:00:04","date_gmt":"2023-12-21T06:00:04","guid":{"rendered":"https:\/\/xzfastener.com\/?p=6797"},"modified":"2026-06-22T14:01:25","modified_gmt":"2026-06-22T06:01:25","slug":"metric-fastener-size-chart-for-procurement-and-engineering-teams","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/ja\/metric-fastener-size-chart-for-procurement-and-engineering-teams\/","title":{"rendered":"Metric Fastener Size Chart for Procurement and Engineering Teams"},"content":{"rendered":"<p>A metric fastener size chart helps procurement and engineering teams speak the same language. It reduces wrong RFQs, wrong thread matching, and last-minute assembly problems.<\/p>\n\n\n\n<p>In metric fasteners, size is usually written as <strong>M + nominal diameter \u00d7 pitch \u00d7 length<\/strong>. For example, <strong>M12 \u00d7 1.75 \u00d7 80<\/strong> means a 12 mm nominal diameter, 1.75 mm thread pitch, and 80 mm length.<\/p>\n\n\n\n<p>For buyers, the key is not only the \u201cM size.\u201d Pitch, length, grade, coating, and matching nuts or washers must also be confirmed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Basic Metric Fastener Size Chart<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Common Metric Sizes and Coarse Pitches<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Metric Size<\/th><th>Common Coarse Pitch<\/th><th>Typical Industrial Use<\/th><\/tr><\/thead><tbody><tr><td>M4<\/td><td>0.7 mm<\/td><td>Small covers, light brackets<\/td><\/tr><tr><td>M5<\/td><td>0.8 mm<\/td><td>Electronics, light machinery<\/td><\/tr><tr><td>M6<\/td><td>1.0 mm<\/td><td>Panels, brackets, general assembly<\/td><\/tr><tr><td>M8<\/td><td>1.25 mm<\/td><td>Equipment frames, supports<\/td><\/tr><tr><td>M10<\/td><td>1.5 mm<\/td><td>Machinery, construction hardware<\/td><\/tr><tr><td>M12<\/td><td>1.75 mm<\/td><td>Steel frames, base plates<\/td><\/tr><tr><td>M16<\/td><td>2.0 mm<\/td><td>Heavy equipment, structural joints<\/td><\/tr><tr><td>M20<\/td><td>2.5 mm<\/td><td>Large machinery, anchors<\/td><\/tr><tr><td>M24<\/td><td>3.0 mm<\/td><td>Heavy-duty structures and foundations<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>This chart is a starting point. Final selection should follow the drawing, project standard, or equipment manual.<\/p>\n\n\n\n<p>For common catalog items, review <a href=\"https:\/\/xzfastener.com\/ja\/products-category\/standard-fasteners\/\">standard fasteners<\/a> and confirm whether the product follows DIN, ISO, ASTM, or a project drawing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Procurement Teams Should Confirm<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Size Alone Is Not Enough<\/h3>\n\n\n\n<p>A purchase request that says \u201cM12 bolt\u201d is incomplete. It can still lead to the wrong product.<\/p>\n\n\n\n<p>Confirm:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Product type: bolt, screw, nut, washer, stud, or anchor<\/li>\n\n\n\n<li>Diameter and length<\/li>\n\n\n\n<li>Thread pitch: coarse or fine<\/li>\n\n\n\n<li>Thread length: full thread or partial thread<\/li>\n\n\n\n<li>Grade: 4.8, 8.8, 10.9, 12.9, A2-70, etc.<\/li>\n\n\n\n<li>Surface finish: plain, zinc, HDG, zinc flake, black, stainless<\/li>\n\n\n\n<li>Matching nuts and washers<\/li>\n<\/ul>\n\n\n\n<p>For bolt sourcing, review <a href=\"https:\/\/xzfastener.com\/ja\/fastener-type\/bolts\/\">bolt products<\/a>. For washer matching, check <a href=\"https:\/\/xzfastener.com\/ja\/fastener-type\/washers\/\">washer products<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Engineering Checks Before Approval<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Match the Size to the Application<\/h3>\n\n\n\n<p>Engineering teams should consider load, vibration, corrosion, installation space, and maintenance frequency.<\/p>\n\n\n\n<p>For load-bearing assemblies, <a href=\"https:\/\/xzfastener.com\/ja\/products-category\/high-strength-fasteners\/\">high-strength fasteners<\/a> may be required. For outdoor, marine, or humid environments, compare <a href=\"https:\/\/xzfastener.com\/ja\/products-category\/various-coated-fasteners\/\">various coated fasteners<\/a> or stainless options.<\/p>\n\n\n\n<p>If the part has special head shape, long thread, shoulder diameter, or non-standard length, use <a href=\"https:\/\/xzfastener.com\/ja\/products-category\/custom-non-standard-fasteners\/\">custom non-standard fasteners<\/a> and provide a drawing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Final Advice<\/h2>\n\n\n\n<p>A metric fastener size chart is useful, but it should not replace a complete specification. Good purchasing data includes size, pitch, length, standard, grade, coating, matching parts, and application condition.<\/p>\n\n\n\n<p>For broader sourcing, review the full <a href=\"https:\/\/xzfastener.com\/ja\/home\/products\/\">fastener products<\/a> range before finalizing the RFQ.<\/p>","protected":false},"excerpt":{"rendered":"<p>A metric fastener size chart helps procurement and engineering teams speak the same language. It reduces wrong RFQs, wrong thread matching, and last-minute assembly problems. In metric fasteners, size is usually written as M + nominal diameter \u00d7 pitch \u00d7 length. For example, M12 \u00d7 1.75 \u00d7 80 means a 12 mm nominal diameter, 1.75 mm thread pitch, and 80 mm length. For buyers, the key is not only the \u201cM size.\u201d Pitch, length, grade, coating, and matching nuts or washers must also be confirmed. Basic Metric Fastener Size Chart Common Metric Sizes and Coarse Pitches Metric Size Common Coarse Pitch Typical Industrial Use M4 0.7 mm Small covers, light [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[479],"tags":[482],"class_list":["post-6797","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-fastener-sizes-specifications"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/ja\/wp-json\/wp\/v2\/posts\/6797","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/ja\/wp-json\/wp\/v2\/comments?post=6797"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/ja\/wp-json\/wp\/v2\/posts\/6797\/revisions"}],"predecessor-version":[{"id":6798,"href":"https:\/\/xzfastener.com\/ja\/wp-json\/wp\/v2\/posts\/6797\/revisions\/6798"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/ja\/wp-json\/wp\/v2\/media?parent=6797"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/ja\/wp-json\/wp\/v2\/categories?post=6797"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/ja\/wp-json\/wp\/v2\/tags?post=6797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}