Note:The hexagon nuts with flange and clamping part are self-locking nuts with plastic insert. The flange increases the contact area and protects the component surface. 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. Multiple use of the hexagon nut is not intended. < advantages: - Protects the component surface without washers or spring washers • Reliable securing through clamping effect of the polyamide insert • Permanently integrated clamping part • accidental forgetting impossible