Tamper Resistant Screw Head Type Round Material 18-8 Stainless Steel Finish Plain Drive One-Way Thread Size #8-32 Fastener Length 1/2 in Head Width 0.309 in Head Height 0.12 in Drive Size #8 Dimensional Standards ASME B18.6.3 Pack Size Small Type Tamper Resistant Screw Maximum Head Width 0.309 in Minimum Head Width 0.287 in Maximum Head Height 0.12 in Minimum Head Height 0.107 in System of Measurement Inch Thread Type Coarse Package Quantity 100