标准编号：ISO 4017:2011
中文名称：六角头螺钉 产品等级A和B级
英文名称：Hexagon head screws — 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 threads from M1,6 up toand including M64, of product grade A for threads M1,6 to M24 and nominal lengths up to and including 10d or150 mm, whichever is the shorter, and product grade B for threads over M24 or nominal lengths over 10d or150 mm, whichever is the shorter.NOTE This type of product is the same as that covered by ISO 4014 with the exception of threading up to head andnominal lengths up to and including 200 mm as preferred lengths.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.
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