ISO 7040:2012

Prevailing torque type hexagon regular nuts (with non-metallic insert) — Property classes 5, 8 and 10

ISO 7040:2012 specifies the characteristics of prevailing torque type hexagon regular nuts (with non-metallic insert) with threads from M3 up to and including M36, in product grade A for threads up to and including M16 and product grade B for threads above M16, and with property classes 5, 8 and 10.