Machine Screw Head Type Round Material 18-8 Stainless Steel Finish Plain Drive Slotted Thread Size #4-40 Fastener Length 1/4 in Head Width 0.212 in Head Height 0.086 in Tensile Strength 60 000 psi Dimensional Standards ASME B18.6.3 Pack Size Small Minimum Thread Length 15/64 in Type Standard Machine Screw Maximum Head Width 0.212 in Minimum Head Width 0.191 in Maximum Head Height 0.086 in Minimum Head Height 0.075 in System of Measurement Inch Thread Style Fully Threaded