EN 1666:1997

Prevailing torque type hexagon nuts with flange (with non-metallic insert) with metric fine pitch thread (ISO 12125:1997, modified) EN 1666:1997

Publication date:   Oct 23, 2003

Scope

This European Standard specifies the characteristics of prevailing torque type hexagon nuts with flange, with non-metallic annular insert and metric fine pitchthread with nominal thread diameters from 8 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 property classes 6, 8 and 10.