- Cylindrical Trim Head small cylinder head can fix invisible in the material, be countersunk easily, and reduces the splitting of wood.
- Double Thread stops top material pushing apart during installation, and holds decking securely in place.
- Patent U Cutting Thread helps to cutting material for quick and easy.
- Sharp-Arrow Point drills easily without pre-drilling.
- Can be stainless steel with high protection against corrosion for outdoor.