prEN 1666 rev

Prevailing torque type hexagon nuts with flange (with non-metallic insert) with metric fine pitch thread, style 2 - Product grades A and B (ISO 12125:2012, modified) prEN 1666 rev

Scope

This European Standard specifies the characteristics of prevailing torque type hexagon nuts with flange, with non-metallic annular insert and metric fine pitch thread with nominal thread diameters D from 8 mm up to and including 20 mm, in product grade A for D up to and including 16 mm and product grade B for D > 16 mm and with property classes 6, 8 and 10.