prEN 1663 rev

Prevailing torque type hexagon nuts with flange (with non-metallic insert), style 2 - Product grades A and B (ISO 7043:2012, modified)

Scope

This European Standard specifies the characteristics of prevailing torque type hexagon nuts with flange, with non-metallic annular insert and coarse 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 and 10.