Tamper Resistant Screw Head Type Button Finish Black Oxide Material Steel Screw Size #8 Fastener Length 1 1/2 in Head Width 0.305 in Head Height 0.087 in Drive Size 5/32 in Dimensional Standards ASME B18.6.4 Pack Size Small Minimum Head Height 0.077 in Maximum Head Height 0.087 in System of Measurement Inch Drive Hex Package Quantity 25