{"id":69769,"date":"2026-05-17T17:28:03","date_gmt":"2026-05-17T17:28:03","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/en-iso-7092\/"},"modified":"2026-05-19T15:31:04","modified_gmt":"2026-05-19T15:31:04","slug":"en-iso-7092","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/en-iso-7092\/","title":{"rendered":"EN ISO 7092"},"content":{"rendered":"<h2>Technical Description and Scope of the EN ISO 7092 Standard<\/h2>\n<p>This specification regulates the geometric and physico-mechanical parameters of small-series plain washers belonging to product grade A. The document covers elements with nominal thread diameters from 1.6 to 36 mm and two hardness classes: 200 HV and 300 HV. Products supplied by EV Group China fully comply with these regulatory requirements.<\/p>\n<p>The use of washers with a hardness class of 200 HV is optimal for:<\/p>\n<ul>\n<li>Hexagon socket head cap screws (property class \u22648.8 or stainless steel alloys).<\/li>\n<li>Torx head cap screws (property class \u22648.8 or stainless steel alloys).<\/li>\n<li>Case-hardened screws with metric thread and cylindrical head.<\/li>\n<\/ul>\n<p>The use of washers with a hardness class of 300 HV is recommended for high-strength fasteners:<\/p>\n<ul>\n<li>Hexagon socket head cap screws (property class \u226410.9).<\/li>\n<li>Torx head cap screws (property class \u226410.9).<\/li>\n<\/ul>\n<p>For sizes not covered by this standard, the requirements of ISO 887 should be followed. EV Group China engineers emphasize: when designing joints using soft materials or oversized clearance holes, the choice of washer type must undergo mandatory technical verification for compliance with operational loads.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[120],"class_list":["post-69769","wiki","type-wiki","status-publish","hentry","wiki_category-iso"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69769","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\/69769\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=69769"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=69769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}