Technical design with 3-section wings to provide more stable, more secure and safer anchoring.
The 3 sections of the wings unfold and overlap during expansion, providing: solid screw clamping of the substrate, significant plug stability, increased load bearing capacity, clean installation with no damage to the substrate, expansion guarandteed even if the wings are bent during use.
Strength due to shape locking.
Anti-rotation lock due to the lugs.
The fixed part can be removed and reinstalled.
Metric threading providing an easy screwing surface and solid tightening.