Machine Screw, Head Type Fillister, Material Steel, Finish Zinc Plated, Drive Slotted, Thread Size #4-40, Fastener Length 1/2 in, Head Width 0.183 in, Head Height 0.107 in, Tensile Strength 60,000 psi, Dimensional Standards ASME B18.6.3, Pack Size Bulk, Minimum Thread Length 1/2 in, Type Standard Machine Screw, Washer Thickness -, System of Measurement Inch, Thread Type Coarse, Package Quantity 10000