We are specialized in high standard self tapping screws in various types, special product can also be made upon customers drawing or samples. GB,ANSI,DIN,JIS,BS In this line we have many years experience and resourcing. Head Styles: Pan head, Flat head, Oval head, HWH head, HWF head, Bugle head, CSK head, Pan Framing head, Truss head, Waffer head. Recess: Pozi, Philips, Square, HWFundercut, Flower head, slotted, Torx, Threads: TypeA, TypeB, TypeC, TypeAB, Hi-Low, Double Thread. Plating: Plain,Yellow Zinc,Zinc,Black Phosphated,Black Zinc,Block Oxide,Dacrotized,Ruspert,Xylan