The international standard ISO 8677 establishes strict technical regulations and geometric parameters for bolts equipped with an enlarged mushroom head and a square neck. This type of fastener is designed for use in structures where it is necessary to prevent the bolt from rotating while tightening the nut, as well as to create an aesthetic and safe connection with a low-profile head.<\/p>\n
Technical requirements apply to products with metric threads in the range of nominal diameters from M5 to M20. The standard defines tolerances for shank lengths from 20 to 200 mm. Products supplied by EV Group China fully comply with these specifications, ensuring high precision of geometric parameters and reliability of the threaded connection.<\/p>\n
This regulatory document is the international technical equivalent of the DIN 603 standard. EV Group China engineers recommend using these types of parts in wooden structures, furniture manufacturing, and metal construction assembly, where protection against injury and unauthorized dismantling is required.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[120],"class_list":["post-69786","wiki","type-wiki","status-publish","hentry","wiki_category-iso"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69786","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\/69786\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=69786"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=69786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}