{"id":6521,"date":"2023-02-16T13:56:41","date_gmt":"2023-02-16T05:56:41","guid":{"rendered":"https:\/\/xzfastener.com\/?p=6521"},"modified":"2026-06-17T13:58:05","modified_gmt":"2026-06-17T05:58:05","slug":"what-should-be-included-in-a-custom-bolt-drawing","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/zh\/what-should-be-included-in-a-custom-bolt-drawing\/","title":{"rendered":"\u5b9a\u5236\u87ba\u6813\u56fe\u7eb8\u4e2d\u5e94\u5305\u542b\u54ea\u4e9b\u5185\u5bb9\uff1f"},"content":{"rendered":"<p>A custom bolt drawing must give the supplier enough information to quote, manufacture, inspect, and pack the part correctly. A simple sketch with \u201cM20 bolt\u201d is not enough for production.<\/p>\n\n\n\n<p>In real sourcing, many custom bolt problems come from missing details. The bolt shape may be clear, but the thread length, tolerance, material, grade, coating, or inspection requirement is not. That creates quotation delays, wrong samples, or failed assembly after delivery.<\/p>\n\n\n\n<p>For drawing-based orders, buyers should treat the drawing as the main technical contract.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Basic Information Every Custom Bolt Drawing Needs<\/h2>\n\n\n\n<p>A custom bolt drawing should clearly define the geometry, material, strength, surface finish, and acceptance criteria.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7ed8\u56fe\u9879\u76ee<\/th><th>\u9700\u8981\u6307\u5b9a\u4ec0\u4e48<\/th><th>\u4e3a\u4ec0\u4e48\u5b83\u5f88\u91cd\u8981<\/th><\/tr><\/thead><tbody><tr><td>\u4ea7\u54c1\u540d\u79f0<\/td><td>Custom bolt, anchor bolt, shoulder bolt, U-bolt, etc.<\/td><td>Defines the part type<\/td><\/tr><tr><td>\u6807\u51c6\u53c2\u8003<\/td><td>DIN, ISO, ASTM, ANSI, or \u201cmade to drawing\u201d<\/td><td>Helps compare with standard fasteners<\/td><\/tr><tr><td>\u76f4\u5f84<\/td><td>Nominal and actual critical diameter<\/td><td>Controls fit and strength<\/td><\/tr><tr><td>\u603b\u957f<\/td><td>\u87ba\u6813\u603b\u957f\u5ea6<\/td><td>Affects assembly depth<\/td><\/tr><tr><td>\u87ba\u8ddd<\/td><td>\u516c\u5236\u3001UNC\u3001UNF\u6216\u7279\u6b8a\u87ba\u7eb9<\/td><td>\u9632\u6b62\u87ba\u6bcd\u9519\u914d<\/td><\/tr><tr><td>\u87ba\u7eb9\u957f\u5ea6<\/td><td>\u5168\u87ba\u7eb9\u6216\u90e8\u5206\u87ba\u7eb9<\/td><td>\u63a7\u5236\u53c2\u4e0e\u5ea6<\/td><\/tr><tr><td>\u5934\u578b<\/td><td>Hex, square, round, socket, special head<\/td><td>\u5f71\u54cd\u5de5\u5177\u548c\u95f4\u9699<\/td><\/tr><tr><td>\u6750\u8d28<\/td><td>Carbon steel, alloy steel, stainless steel, etc.<\/td><td>\u63a7\u5236\u5f3a\u5ea6\u548c\u8010\u8150\u8680\u6027<\/td><\/tr><tr><td>\u7b49\u7ea7\/\u73ed<\/td><td>8.8\u300110.9\u300112.9\u3001B7\u3001A2-70\u7b49<\/td><td>\u5b9a\u4e49\u673a\u68b0\u6027\u80fd<\/td><\/tr><tr><td>\u8868\u9762\u5149\u6d01\u5ea6<\/td><td>\u9540\u950c\u3001HDG\u3001\u9ed1\u8272\u6c27\u5316\u3001\u8fbe\u514b\u7f57\u3001\u666e\u901a<\/td><td>\u63a7\u5236\u8150\u8680\u548c\u87ba\u7eb9\u914d\u5408<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4e70\u5bb6\u53ef\u4ee5\u6bd4\u8f83\u53ef\u7528 <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/standard-fasteners\/\">\u6807\u51c6\u7d27\u56fa\u4ef6<\/a> before deciding whether a custom bolt is required.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Critical Dimensions to Mark<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Thread and Shank Details<\/h3>\n\n\n\n<p>Thread information must be complete. Do not write only \u201cM16\u201d if the thread pitch is important.<\/p>\n\n\n\n<p>\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5927\u5f84<\/li>\n\n\n\n<li>\u87ba\u8ddd<\/li>\n\n\n\n<li>\u87ba\u7eb9\u957f\u5ea6<\/li>\n\n\n\n<li>\u67c4\u957f<\/li>\n\n\n\n<li>Chamfer or thread start<\/li>\n\n\n\n<li>\u87ba\u7eb9\u516c\u5dee\uff08\u5982\u679c\u9700\u8981\uff09<\/li>\n\n\n\n<li>\u914d\u5957\u87ba\u6bcd\u8981\u6c42<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Head and Special Features<\/h3>\n\n\n\n<p>For non-standard heads, mark all working dimensions. This includes head height, across flats, socket depth, hole diameter, radius, groove, slot, bend angle, or welded feature.<\/p>\n\n\n\n<p>If the part is not available as a catalog item, <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/custom-non-standard-fasteners\/\">\u5b9a\u5236\u975e\u6807\u7d27\u56fa\u4ef6<\/a> should be quoted with a complete drawing or approved sample.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Material, Grade and Finish Requirements<\/h2>\n\n\n\n<p>Material and strength should not be assumed from appearance.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8981\u6c42<\/th><th>\u793a\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>\u6750\u8d28<\/td><td>40Cr, SCM440, 304, 316, carbon steel<\/td><\/tr><tr><td>\u5f3a\u5ea6\u7b49\u7ea7<\/td><td>Class 8.8, 10.9, 12.9, ASTM A193 B7<\/td><\/tr><tr><td>\u70ed\u5904\u7406<\/td><td>Quenched and tempered, if required<\/td><\/tr><tr><td>\u8868\u9762\u5149\u6d01\u5ea6<\/td><td>Zinc plated, hot-dip galvanized, Dacromet<\/td><\/tr><tr><td>Test documents<\/td><td>MTC, hardness test, tensile test, inspection report<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5bf9\u4e8e\u9ad8\u8d1f\u8f7d\u5e94\u7528\uff0c\u8bf7\u67e5\u770b <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/high-strength-fasteners\/\">\u9ad8\u5f3a\u5ea6\u7d27\u56fa\u4ef6<\/a> and define mechanical testing before production.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common Drawing Mistakes<\/h2>\n\n\n\n<p>\u907f\u514d\u8fd9\u4e9b\u95ee\u9898\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Missing thread pitch.<\/li>\n\n\n\n<li>No tolerance on critical dimensions.<\/li>\n\n\n\n<li>Material listed but no strength grade.<\/li>\n\n\n\n<li>Coating not clearly defined.<\/li>\n\n\n\n<li>No matching nut or washer information.<\/li>\n\n\n\n<li>Drawing does not match the physical sample.<\/li>\n\n\n\n<li>Revision number missing.<\/li>\n\n\n\n<li>No inspection or certificate requirement.<\/li>\n<\/ol>\n\n\n\n<p>\u5bf9\u4e8e\u8150\u8680\u654f\u611f\u7684\u5e94\u7528\uff0c\u6bd4\u8f83 <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/various-coated-fasteners\/\">\u6d82\u5c42\u7d27\u56fa\u4ef6<\/a> \u5728\u786e\u8ba4\u5b8c\u6210\u4e4b\u524d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6700\u7ec8RFQ\u6e05\u5355<\/h2>\n\n\n\n<p>Before sending a custom bolt drawing, confirm:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Drawing version and unit system<\/li>\n\n\n\n<li>Size, thread, head, and special features<\/li>\n\n\n\n<li>Material, grade, heat treatment, and coating<\/li>\n\n\n\n<li>Quantity and tolerance<\/li>\n\n\n\n<li>\u5e94\u7528\u73af\u5883<\/li>\n\n\n\n<li>\u6240\u9700\u8bc1\u4e66\u548c\u68c0\u9a8c\u62a5\u544a<\/li>\n\n\n\n<li>Packaging and labeling needs<\/li>\n<\/ul>\n\n\n\n<p>A good custom bolt drawing reduces guessing. It helps the supplier quote faster, produce more accurately, and inspect the final parts against clear requirements.<\/p>","protected":false},"excerpt":{"rendered":"<p>A custom bolt drawing must give the supplier enough information to quote, manufacture, inspect, and pack the part correctly. A simple sketch with \u201cM20 bolt\u201d is not enough for production. In real sourcing, many custom bolt problems come from missing details. The bolt shape may be clear, but the thread length, tolerance, material, grade, coating, [&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":[1],"tags":[493],"class_list":["post-6521","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-drawings-samples-rfq-requirements"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts\/6521","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/comments?post=6521"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts\/6521\/revisions"}],"predecessor-version":[{"id":6522,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts\/6521\/revisions\/6522"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/media?parent=6521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/categories?post=6521"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/tags?post=6521"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}