Hex washer head self drilling screw

Size: 4.8x29, 38, 50, 60, 64, 70, 76, 80
5.5x19, 25, 32, 38, 51, 64, 76
6.3x19, 25, 32, 38, 45, 50, 76, 102, 127, 152
Surface: Zinc
Packing: Carton bulk or small box +pallet