Surface treatment: black phosphate/blue white zinc/colour zinc plating
Material: carbon steel
Surface treatment: heat treatment process color zinc plating
Product material: carbon steel
Leg length: 16mm to 60mm
Use: for joining plasterboard and keel, furniture
It is used to connect the keel to the calcium silicate board during decoration.
Length:25mm 35mm
Special process and characteristic advantages:
1. The surface is galvanized, with high brightness, beautiful appearance, and strong corrosion resistance (optional surface treatment processes such as white zinc plating, color zinc plating, black phosphating, gray phosphating, and nickel plating).
2. Carburized and tempered, the surface hardness is high, which can reach or exceed the standard value.
3. Advanced technology, small twisting torque and high locking performance.
Length:13mm—-70mm
Winged self-drilling screws do not require tapped holes. The screws used are different from ordinary screws. The head is pointed and the pitch of the teeth is relatively large. A chipless tap is a bit like it can be screwed in directly without tapping. This method is commonly used for metals and plastics.