ISO 7044:2012, Prevailing torque type all-metal hexagon nuts with flange, style 2 – Product grades A and B

ISO 7044:2012 specifies the characteristics of prevailing torque type all-metal hexagon nuts with flange (style 2) and threads 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, 10 and 12.