HELICOIL® thread inserts create high-strength fastenings in metal low-strength materials and have been well established on the market for about 50 years .
The HELICOIL® plus screwlock has the same benefits regarding the threads as the HELICOIL® plus free running and it is confirming to DIN 8140-b.
Additionally an integrated screw clamping area serves as a screw-lock.
The screw clamping is realised by one or more polygone formed windings that clamp the flanks of the screwed-in screws. The result is an elastic frictional resistance.