Tamper Screw, Head Type Button, Finish Black Oxide, Material Steel, Screw Size #6, Fastener Length 3/4 in, Head Width 0.512 in, Head Height 0.073 in, Drive Size 1/8 in, Dimensional Standards ASME B18.6.4, Pack Size Small, Minimum Head Height 0.063 in, Maximum Head Height 0.073 in, System of Measurement Inch, Drive Hex, Package Quantity 50