prEN 1667 rev

Prevailing torque type all-metal hexagon nuts with flange with metric fine pitch thread, style 2 - Product grades A and B (ISO 12126:2012, modified)

Scope

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