U31810.019.0200 Self Drilling Tapping Screw, Finish Zinc Plated, Material Steel, Head Type Hex Washer, Drive External Hex, Screw Size #10, Fastener Length 2 in, Drill Point Size 2, Drill Tip Length 15/64 in, Maximum Drilling Thickness 0.156 in, Head Width 0.312 in, Head Height 0.12 in, Washer Outside Diameter 0.414 in, Drive Size 5/16 in, Pack Size Small, System of Measurement Inch, Maximum Head Width 0.312 in, Minimum Head Width 0.305 in, Maximum Head Height 0.12 in, Minimum Head Height 0.105 in