ISO 4032:2012 Preview
Hexagon regular nuts (style 1) -- Product grades A and B
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
ISO 4032:2012 specifies the characteristics of hexagon regular nuts (style 1), with threads from M1,6 up to and including M64, with product grade A for threads of diameter less than or equal to M16 and product grade B for threads of diameter greater than M16.
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