Machine Screw Head Type Pan Material 18-8 Stainless Steel Finish Black Oxide Drive Phillips Thread Size #2-56 Fastener Length 5/16 in Head Width 0.161 in Head Height 0.062 in Drive Size #1 Tensile Strength 80 000 psi Pack Size Small Type Standard Machine Screw Maximum Head Height 0.062 in Minimum Head Height 0.053 in System of Measurement Inch Thread Style Fully Threaded Thread Type Coarse Package Quantity 50