020440A025 Machine Screw, Head Type Flat, Material Nylon, Finish Plain, Drive Slotted, Thread Size #4-40, Fastener Length 11/64 in, Head Width 0.219 in, Head Height 0.063 in, Tensile Strength 41 psi, Pack Size Small, Minimum Thread Length 1/4 in, Type Standard Machine Screw, Washer Outside Diameter Not Applicable, Washer Thickness Not Applicable, Maximum Head Width 0.219 in, Minimum Head Width 0.225 in, Maximum Head Height 0.063 in, Minimum Head Height 0.067 in, System of Measurement Inch