Cross recessed pan head tapping screws 1.Material:stainless steel 316,stainless steel 304 ... GB845, DIN79814.Certificate: ISO 9001:2000Cross recessed pan head tapping screws 1.Machining method: cnc Turning, Milling, Drilling, threading, ... blackening, Nickel plating, Electrophoresis, Anodization3.size:Various kinds of screws are available4.Color: Metal colors available5.Packing: cartons, pallet, ...