Machine Screw Head Type Round Material Brass Finish Plain Drive Slotted Thread Size #12-24 Fastener Length 1/2 in Head Width 0.412 in Head Height 0.153 in Tensile Strength 60 000 psi Dimensional Standards ASME B18.6.3 Pack Size Small Type Standard Machine Screw Maximum Head Width 0.412 in Minimum Head Width 0.38 in Maximum Head Height 0.153 in Minimum Head Height 0.139 in System of Measurement Inch Thread Type Coarse Package Quantity 50