Tapping Sheet Metal Screw Head Type Truss Finish Plain Material 18-8 Stainless Steel Screw Size #4 Fastener Length 1/4 in Head Width 0.257 in Head Height 0.063 in Drive Size #1 Dimensional Standards ASME B18.6.4 SAE J933 For Maximum Material Thickness 1/32 in Pack Size Small Minimum Head Height 0.069 in Maximum Head Height 0.063 in System of Measurement Inch Drive Phillips Point Type A Package Quantity 100