Self Drill Screw Finish Zinc Plated Material Steel Head Type Hex Washer Drive External Hex Screw Size #10 Fastener Length 2 in Drill Point Size 3 Drill Tip Length 1/4 in Head Width 0.305 in Head Height 0.163 in Washer Outside Diameter 0.384 in Drive Size 5/16 in Pack Size Bulk System of Measurement Inch Head Color Silver Package Quantity 400