标准编号：ISO 8676:2011
中文名称：米制细牙六角头螺钉 产品等级A和B级
英文名称：Hexagon head screws with metric fine pitch thread — Product grades A and B
发布日期：2011-04
标准范围
This International Standard specifies the characteristics of hexagon head screws with metric fine pitch threadwith nominal thread diameters, d, from 8 mm to 64 mm, of product grade A for nominal thread diameters, d,from 8 mm to 24 mm and nominal lengths, l, up to and including 10d or 150 mm, whichever is the shorter, andof product grade B for nominal thread diameters, d, over 24 mm or nominal lengths, l, over 10d or 150 mm,whichever is the shorter.If, in special cases, specifications other than those listed in this International Standard are required, they canbe selected from existing International Standards, for example ISO 724, ISO 888, ISO 898-1, ISO 965-1,ISO 3506-1, ISO 4753 and ISO 4759-1.It is intended that coarse thread screws according to ISO 4017 be the first choice.
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