Self drilling screw is one of the main fastener in the screw serious, and it is famous for its drill in the point, which could help the screw could drill by without advance drilling hole.
Self drilling screw could seperated into the following type according to its usage and shape: Cross recessed pan head drilling screws, .Cross recessed countersunk head drilling screws, Cross recessed countersunk head drilling screws, Hexagon flange head drilling screws, Hexagon washer head drilling screws...and Hexagon flange head drilling screws is the max usage in the market.
According to the standard, Self-drilling screw is implement of GB/T 15856, DIN7504, ISO15483 etc.
Huanyi-Fastener could mainly manufacturer C1022A, Stainless steel 304 type self drilling screw with comprehensive specifications and types, customers worldwide are welcomed send us your needs to hyfastener@rivet-suppliers.com, we will handle them in the first time.