Champion 400Pc Self Drilling Screw Assortment 4PK0640 MITSUBA 5x the cutting power of ImpUNF 1 2x3 5x the cutting power of traditional design to save you effort 3 8" x 12" Flute length 15" Overall • 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 CA530 400PC SELF DRILLING SCREW ASSORTMENT • Wafer and Hex Head Yellow Zinc