CA530 | 400PC SELF-DRILLING SCREW ASSORTMENT Wafer and Hex Head Yellow Zinc. 8 Sizes: 8G & 10G Lengths to 30mm 400 Pieces Replacement Packs Available Part # Size Pack Qty C530-1 8G x 12mm Mushroom Head 50 C530-2 8G x 16mm Mushroom Head 50 C530-3 8G x 20mm Mushroom Head 50 C530-4 8G x 25mm Mushroom Head 50 C530-5 10G x 16mm Wafer Head 50 C530-6 10G x 22mm Wafer Head 50 C530-7 10G x 30mm Wafer Head 50 C530-8 10G x 16mm Hex Head 50