U Drive Screw, Grip Style Not Applicable, Type U Drive Screw, Finish Zinc Plated, Material Steel, Thread Size #8-3/8, Fastener Length 3/8 in, Thread Style Fully Threaded, Thread Length Not Applicable, Head Width 0.309 in, Head Height 0.12 in, Tensile Strength Not Applicable, Head Type Knurled, Maximum Head Width 0.309 in, Minimum Head Width 0.287 in, Maximum Head Height 0.12 in, Minimum Head Height 0.107 in, System of Measurement Inch, Head Material Steel, Head Shape Round, Package Quantity 100