Hex chamfered single face
Hex with flange
Hex with shoulder
Cheese with collar
Hex chamfered double faces
EN 1663-1998
Prevailing torque type hexagon nuts with flange (with non-metallic insert)
EN 1663-2003
Prevailing torque type hexagon nuts with flange (with non-metallic insert)
EN 1663-2008
Prevailing torque type hexagon nuts with flange (with non-metallic insert)