Published
ISO 4161:2012 specifies the characteristics of hexagon nuts with flange (style 2), with metric coarse threads from M5 to M20 inclusive, of product grade A for threads up to and including M16 and product grade B for threads above M16.
Revises
ISO 4161:1999
PUBLISHED
ISO 4161:2012
90.93
Standard confirmed
Jul 1, 2022
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