Features:
1. Due to self-tapping ability, the base material does not have to be tapped in advance.
2. It has a large contact area with the finished product, strong pull resistance.
3. Strong resistance to vibration, which can prevent loosening.
4. There is no clearance with the base material and the base material also has good air tightness if it contains bubbles.
5. Easy and quick to install - only need one assembly tool.