ISO 7043:2012 Preview
Prevailing torque type hexagon nuts with flange (with non-metallic insert), style 2 -- Product grades A and B
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
ISO 7043:2012 specifies the characteristics of prevailing torque type hexagon nuts with flange (with non-metallic insert), of style 2, with threads from M5 to M20 inclusive, in product grade A for threads up to and including M16 and product grade B for threads above M16, and with property classes 8, 9 and 10.
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