Tamper Resistant Screw Head Type Round Material 18-8 Stainless Steel Finish Plain Drive One-Way Thread Size #10-32 Fastener Length 1 1/2 in Head Width 0.359 in Head Height 0.137 in Drive Size #10 Dimensional Standards ASME B18.6.3 Pack Size Small Type Tamper Resistant Screw Maximum Head Width 0.359 in Minimum Head Width 0.334 in Maximum Head Height 0.137 in Minimum Head Height 0.123 in System of Measurement Inch Thread Type Fine Package Quantity 25