Note: The hexagon nuts with clamping part are self-locking nuts with plastic insert. A ring-shaped polyamide clamp is permanently attached to one of the two end faces and cannot be accidentally forgotten. The plastic insert has a reliable clamping effect when fastening the nut. The multiple use of the hexagon nut is not intended < advantages: • Reliable securing through clamping effect of the polyamide insert • Permanently integrated clamping part • inadvertent forgetting impossible