Tamper Resistant Screw Head Type Flat Material 18-8 Stainless Steel Finish Plain Drive Spanner Thread Size #10-32 Fastener Length 2 1/2 in Head Width 0.385 in Head Height 0.116 in Drive Size #10 Dimensional Standards ASME B18.6.3 Pack Size Small Type Tamper Resistant Screw Maximum Head Width 0.385 in Minimum Head Width 0.34 in System of Measurement Inch Thread Type Fine Package Quantity 25