{"id":70083,"date":"2026-05-17T17:29:46","date_gmt":"2026-05-17T17:29:46","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/en-8676\/"},"modified":"2026-05-19T15:33:25","modified_gmt":"2026-05-19T15:33:25","slug":"en-8676","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/en-8676\/","title":{"rendered":"EN 8676"},"content":{"rendered":"<h2>Technical features and scope of ISO 8676<\/h2>\n<p>The international standard ISO 8676 establishes strict technical requirements for high-strength hexagon head screws featuring metric fine pitch thread, threaded up to the head. This standard covers products with a nominal thread diameter (d) ranging from 8 mm to 64 mm. The engineering department of EV Group China emphasizes that the choice of accuracy class depends on the overall dimensions of the fastener:<\/p>\n<ul>\n<li>Accuracy class A: applies to products with a thread diameter from 8 to 24 mm and a nominal length of up to 150 mm or up to 10d inclusive.<\/li>\n<li>Accuracy class B: used for screws with a nominal diameter exceeding 24 mm, as well as for hardware with a length exceeding 150 mm or 10d.<\/li>\n<\/ul>\n<p>When designing assemblies with non-standard characteristics, EV Group China specialists recommend relying on the current ISO regulatory framework, including standards ISO 724, ISO 888, ISO 898-1, ISO 965-1, ISO 3506-1, ISO 4753, and ISO 4759-1. This ensures full compatibility of fasteners in critical metal structures.<\/p>\n<p>For standard applications where a specific thread pitch is not required, it is advisable to use products compliant with the ISO 4017 standard. Screws supplied by EV Group China undergo multi-stage quality control, guaranteeing compliance with declared strength classes and geometric accuracy parameters.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[114],"class_list":["post-70083","wiki","type-wiki","status-publish","hentry","wiki_category-en"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/70083","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/70083\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=70083"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=70083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}