DIN EN 1666:1998 Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread (ISO 12125:1997, modified); German version EN 1666:1997
1998DIN EN 1666:1998-02 Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread (ISO 12125:1997, modified); German version EN 1666:1997
1998DIN EN 1666:1998 Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread (ISO 12125:1997, modified); German version EN 1666:1997