Machine Screw Head Type Flat Material 18-8 Stainless Steel Finish Black Oxide Drive Phillips Thread Size #4-40 Fastener Length 29/64 in Head Width 0.208 in Head Height 0.049 in Drive Size #1 Tensile Strength 80 000 psi Pack Size Small Type Standard Machine Screw System of Measurement Inch Thread Style Fully Threaded Thread Type Coarse Package Quantity 50