Machine Screw, Head Type Flat, Material Steel, Finish Zinc Plated, Drive Phillips, Thread Size #4-40, Fastener Length 1 1/2 in, Head Width 0.212 in, Head Height 0.067 in, Drive Size #1, Tensile Strength 60,000 psi, Dimensional Standards ASME B18.6.3, Pack Size Small, Type Standard Machine Screw, Maximum Head Width 0.212 in, Minimum Head Width 0.191 in, System of Measurement Inch, Thread Type Coarse, Package Quantity 100