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.
The HELICOIL® plus screwlock can be recognised thanks to its red colour.
The HELICOIL® screwlock inserts can only be used with screws of property class 8.8 or higher.