Tamper Resistant Screw Head Type Pan Material 18-8 Stainless Steel Finish Plain Drive Spanner Thread Size 1/4 In.-20 Fastener Length 3 in Head Width 0.492 in Head Height 0.144 in Drive Size #14 Dimensional Standards ASME B18.6.3 Pack Size Small Type Tamper Resistant Screw Maximum Head Width 0.492 in Minimum Head Width 0.473 in Maximum Head Height 0.144 in Minimum Head Height 0.13 in System of Measurement Inch Thread Type Coarse Package Quantity 10