{"id":6753,"date":"2021-04-22T12:36:05","date_gmt":"2021-04-22T04:36:05","guid":{"rendered":"https:\/\/xzfastener.com\/?p=6753"},"modified":"2026-06-22T12:37:55","modified_gmt":"2026-06-22T04:37:55","slug":"what-does-8-8-mean-on-a-bolt-buyers-guide","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/zh\/what-does-8-8-mean-on-a-bolt-buyers-guide\/","title":{"rendered":"\u87ba\u6813\u4e0a\u76848.8\u662f\u4ec0\u4e48\u610f\u601d\uff1f\u4e70\u5bb6\u6307\u5357"},"content":{"rendered":"<p>\u5f53\u4e70\u5bb6\u770b\u5230\u87ba\u6813\u5934\u4e0a\u6709\u201c8.8\u201d\u5b57\u6837\u65f6\uff0c\u5f88\u5bb9\u6613\u8ba4\u4e3a\u8fd9\u53ea\u662f\u5de5\u5382\u6807\u8bb0\u3002\u5b83\u4e0d\u662f\u3002\u5bf9\u4e8e\u516c\u5236\u87ba\u6813\uff0c <strong>8.8\u662f\u673a\u68b0\u6027\u80fd\u7b49\u7ea7<\/strong>\u3002\u5b83\u544a\u8bc9\u60a8\u76f8\u5173\u516c\u5236\u7d27\u56fa\u4ef6\u6807\u51c6\u4e0b\u87ba\u6813\u7684\u5f3a\u5ea6\u7b49\u7ea7\u3002<\/p>\n\n\n\n<p>\u6b64\u6807\u8bb0\u5e38\u89c1\u4e8e\u673a\u68b0\u3001\u94a2\u6846\u67b6\u3001\u652f\u67b6\u3001\u8bbe\u5907\u5e95\u5ea7\u548c\u5efa\u7b51\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u7684\u5de5\u4e1a\u87ba\u6813\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">8.8 \u662f\u4ec0\u4e48\u610f\u601d<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e24\u4e2a\u6570\u5b57\u7684\u89e3\u91ca<\/h3>\n\n\n\n<p>\u7b80\u5355\u6765\u8bf4\uff0c\u7b2c\u4e00\u4e2a\u6570\u5b57\u8868\u793a\u6807\u79f0\u62c9\u4f38\u5f3a\u5ea6\u3002\u7b2c\u4e8c\u4e2a\u6570\u5b57\u8868\u793a\u6536\u76ca\u7387\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6807\u8bb0<\/th><th>\u542b\u4e49<\/th><th>\u5b9e\u7528\u4ef7\u503c<\/th><\/tr><\/thead><tbody><tr><td>8<\/td><td>\u5927\u7ea6\u3002 800 MPa \u6807\u79f0\u6297\u62c9\u5f3a\u5ea6<\/td><td>\u8868\u793a\u87ba\u6813\u7684\u5f3a\u5ea6\u7b49\u7ea7<\/td><\/tr><tr><td>.8<\/td><td>\u6210\u54c1\u7387\u7ea60.8<\/td><td>\u5927\u7ea6\u3002 640 MPa \u5c48\u670d\u5f3a\u5ea6<\/td><\/tr><tr><td>8.8<\/td><td>\u5ea6\u91cf\u5c5e\u6027\u7c7b\u522b<\/td><td>\u7528\u4e8e\u78b3\u94a2\u6216\u5408\u91d1\u94a2\u87ba\u6813<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u6240\u4ee5\uff0c8.8\u7ea7\u87ba\u6813\u6bd4\u4f4e\u6863\u901a\u7528\u7d27\u56fa\u4ef6\u5f3a\u5ea6\u9ad8\uff0c\u4f46\u4e0e10.9\u621612.9\u4e0d\u540c\u3002\u8fd9\u4e5f\u662f <strong>\u4e0eSAE 8 \u7ea7\u4e0d\u540c<\/strong>\uff0c\u5c5e\u4e8e\u82f1\u5236\u7d27\u56fa\u4ef6\u7cfb\u7edf\u3002<\/p>\n\n\n\n<p>\u4e70\u5bb6\u53ef\u4ee5\u8bc4\u8bba\u5e38\u89c1\u7684 <a href=\"https:\/\/xzfastener.com\/zh\/fastener-type\/bolts\/\">\u87ba\u6813\u4ea7\u54c1<\/a> \u548c <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/high-strength-fasteners\/\">\u9ad8\u5f3a\u5ea6\u7d27\u56fa\u4ef6<\/a> \u6bd4\u8f83\u5f3a\u5ea6\u7b49\u7ea7\u65f6\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">8.8 \u87ba\u6813\u7684\u4f7f\u7528\u573a\u5408<\/h2>\n\n\n\n<p>8.8 \u7ea7\u87ba\u6813\u88ab\u5e7f\u6cdb\u4f7f\u7528\uff0c\u56e0\u4e3a\u5b83\u4eec\u5728\u5f3a\u5ea6\u3001\u53ef\u7528\u6027\u548c\u6210\u672c\u4e4b\u95f4\u5b9e\u73b0\u4e86\u5f3a\u6709\u529b\u7684\u5e73\u8861\u3002<\/p>\n\n\n\n<p>\u5e38\u89c1\u5e94\u7528\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u673a\u68b0\u6846\u67b6<\/li>\n\n\n\n<li>\u94a2\u652f\u67b6<\/li>\n\n\n\n<li>\u88c5\u5907\u57fa\u5730<\/li>\n\n\n\n<li>\u5efa\u7b51\u4e94\u91d1<\/li>\n\n\n\n<li>\u519c\u4e1a\u673a\u68b0<\/li>\n\n\n\n<li>\u4e00\u822c\u5de5\u4e1a\u7ec4\u4ef6<\/li>\n\n\n\n<li>\u4e2d\u7b49\u8f7d\u8377\u7ed3\u6784\u8fde\u63a5<\/li>\n<\/ul>\n\n\n\n<p>\u5bf9\u4e8e\u8bb8\u591a\u6807\u51c6\u5de5\u4e1a\u4f5c\u4e1a\uff0c8.8 \u5c31\u8db3\u591f\u4e86\u3002\u5bf9\u4e8e\u66f4\u9ad8\u8d1f\u8f7d\u6216\u7d27\u51d1\u7684\u7ec4\u4ef6\uff0c\u4e70\u5bb6\u53ef\u80fd\u9700\u8981 10.9 \u6216 12.9\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e70\u5bb6\u4e0d\u5e94\u5047\u8bbe\u4ec0\u4e48<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">8.8 \u5e76\u6ca1\u6709\u5b9a\u4e49\u4e00\u5207<\/h3>\n\n\n\n<p>\u6807\u8bb0\u4e3a 8.8 \u7684\u87ba\u6813\u4ec5\u8bf4\u660e\u4e86\u90e8\u5206\u60c5\u51b5\u3002\u5b83\u6ca1\u6709\u5b9a\u4e49\u5b8c\u6574\u7684\u4ea7\u54c1\u89c4\u683c\u3002<\/p>\n\n\n\n<p>\u60a8\u8fd8\u9700\u8981\u786e\u8ba4\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8be2\u4ef7\u9879\u76ee<\/th><th>\u4e3a\u4ec0\u4e48\u5b83\u5f88\u91cd\u8981<\/th><\/tr><\/thead><tbody><tr><td>\u6807\u51c6\u578b<\/td><td>DIN\u3001ISO\u3001EN\u6216\u7ed8\u56fe\u63a7\u5236\u5c3a\u5bf8<\/td><\/tr><tr><td>\u5c3a\u5bf8<\/td><td>\u76f4\u5f84\u3001\u957f\u5ea6\u3001\u87ba\u8ddd\u548c\u87ba\u7eb9\u957f\u5ea6<\/td><\/tr><tr><td>\u5b8c\u6210<\/td><td>\u950c\u3001\u9ed1\u8272\u3001HDG\u3001\u950c\u7247\u6216\u666e\u901a<\/td><\/tr><tr><td>\u575a\u679c\u7b49\u7ea7<\/td><td>\u5f31\u87ba\u6bcd\u53ef\u80fd\u4f1a\u5728\u87ba\u6813\u53d1\u6325\u4f5c\u7528\u4e4b\u524d\u8131\u843d<\/td><\/tr><tr><td>\u57ab\u5708\u7c7b\u578b<\/td><td>\u8f6f\u57ab\u5708\u53ef\u80fd\u4f1a\u51cf\u5c11\u9884\u7d27\u529b<\/td><\/tr><tr><td>\u5e94\u7528<\/td><td>\u8d1f\u8f7d\u3001\u632f\u52a8\u3001\u8150\u8680\u548c\u6e29\u5ea6\u95ee\u9898<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5bf9\u4e8e\u5e38\u89c1\u7684\u7269\u54c1\uff0c\u4e70\u5bb6\u53ef\u4ee5\u4ece <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/standard-fasteners\/\">\u6807\u51c6\u7d27\u56fa\u4ef6<\/a>\u3002\u5bf9\u4e8e\u6d82\u5c42\u9009\u62e9\uff0c\u8bf7\u67e5\u770b <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/various-coated-fasteners\/\">\u5404\u79cd\u6d82\u5c42\u7d27\u56fa\u4ef6<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e70\u5bb6\u5e38\u89c1\u9519\u8bef<\/h2>\n\n\n\n<p>\u907f\u514d\u8fd9\u4e9b\u95ee\u9898\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8ba2\u8d2d\u201c8.8 \u87ba\u6813\u201d\uff0c\u4f46\u6ca1\u6709\u6807\u51c6\u6216\u5c3a\u5bf8\u8be6\u7ec6\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>8.8\u87ba\u6813\u4e0e\u4f4e\u6863\u87ba\u6bcd\u914d\u5957\u3002<\/li>\n\n\n\n<li>\u5047\u8bbe\u9540\u950c\u53ef\u4ee5\u63d0\u9ad8\u5f3a\u5ea6\u3002<\/li>\n\n\n\n<li>\u5728\u4e25\u91cd\u8150\u8680\u60c5\u51b5\u4e0b\u4f7f\u75288.8\uff0c\u65e0\u9700\u6d82\u5c42\u5ba1\u67e5\u3002<\/li>\n\n\n\n<li>\u5c0610.9\u66ff\u6362\u4e3a8.8\u4ee5\u964d\u4f4e\u6210\u672c\uff0c\u65e0\u9700\u5de5\u7a0b\u5ba1\u6279\u3002<\/li>\n\n\n\n<li>\u6df7\u5408\u516c\u52368.8\u4e0e\u82f1\u52368 \u7ea7\u79cd\u89c4\u683c\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">8.8 \u87ba\u6813\u8be2\u4ef7\u6e05\u5355<\/h2>\n\n\n\n<p>\u660e\u786e\u7684\u8be2\u4ef7\u5e94\u5305\u62ec\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4ea7\u54c1\u6807\u51c6<\/li>\n\n\n\n<li>\u76f4\u5f84\u3001\u957f\u5ea6\u548c\u87ba\u8ddd<\/li>\n\n\n\n<li>\u5168\u87ba\u7eb9\u6216\u90e8\u5206\u87ba\u7eb9<\/li>\n\n\n\n<li>8.8 \u7ea7\u8981\u6c42<\/li>\n\n\n\n<li>\u8868\u9762\u5149\u6d01\u5ea6<\/li>\n\n\n\n<li>\u914d\u5957\u87ba\u6bcd\u548c\u57ab\u5708<\/li>\n\n\n\n<li>\u6570\u91cf\u53ca\u5305\u88c5<\/li>\n\n\n\n<li>\u6240\u9700\u68c0\u9a8c\u62a5\u544a<\/li>\n<\/ol>\n\n\n\n<p>\u5bf9\u4e8e\u7279\u6b8a\u957f\u5ea6\u3001\u5934\u578b\u6216\u87ba\u7eb9\u8981\u6c42\uff0c\u8bf7\u4f7f\u7528 <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/custom-non-standard-fasteners\/\">\u5b9a\u5236\u975e\u6807\u7d27\u56fa\u4ef6<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6700\u7ec8\u5efa\u8bae<\/h2>\n\n\n\n<p>\u201c8.8\u201d\u6807\u8bb0\u8868\u793a\u87ba\u6813\u5177\u6709\u89c4\u5b9a\u7684\u516c\u5236\u5f3a\u5ea6\u7b49\u7ea7\u3002\u5b83\u5f88\u6709\u7528\uff0c\u4f46\u4e0d\u662f\u5b8c\u6574\u7684\u89c4\u8303\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u5b89\u5168\u8d2d\u4e70\uff0c\u8bf7\u5728\u751f\u4ea7\u524d\u786e\u8ba4\u7b49\u7ea7\u3001\u6807\u51c6\u3001\u5c3a\u5bf8\u3001\u87ba\u7eb9\u3001\u5149\u6d01\u5ea6\u3001\u87ba\u6bcd\u3001\u57ab\u5708\u548c\u5de5\u4f5c\u72b6\u51b5\u3002<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>When buyers see \u201c8.8\u201d on a bolt head, it is easy to think it is just a factory mark. It is not. For metric bolts, 8.8 is a mechanical property class. It tells you the bolt\u2019s strength level under the relevant metric fastener standard. This marking is common on industrial bolts used in machinery, steel [&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":[504],"class_list":["post-6753","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-strength-grades-mechanical-properties"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts\/6753","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=6753"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts\/6753\/revisions"}],"predecessor-version":[{"id":6754,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts\/6753\/revisions\/6754"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/media?parent=6753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/categories?post=6753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/tags?post=6753"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}