Tamper Resistant Screw Head Type Truss Material 18-8 Stainless Steel Finish Plain Drive Spanner Thread Size #8-32 Fastener Length 2 1/2 in Head Width 0.384 in Head Height 0.102 in Drive Size #8 Pack Size Small Type Tamper Resistant Screw System of Measurement Inch Thread Type Coarse Package Quantity 10