Self Drilling Screw, Finish Climaseal, Material Steel, Head Type Hex Washer, Drive External Hex, Screw Size 1/4 In., Fastener Length 1 in, Drill Point Size 3, Drill Tip Length 1/2 in, Maximum Drilling Thickness 0.21 in, Head Width 0.375 in, Head Height 0.28 in, Washer Outside Diameter 0.575 in, Drive Size 3/8 in, Pack Size Small, System of Measurement Inch, Maximum Head Width 0.375 in, Minimum Head Width 0.375 in, Application Sheet to Steel Framing, Head Color Silver, Package Quantity 250