U Drive Screw Grip Style Not Applicable Type U Drive Screw Finish Zinc Plated Material Steel Thread Size #4-3/8 Fastener Length 3/8 in Thread Style Fully Threaded Thread Length Not Applicable Head Width 0.211 in Head Height 0.086 in Tensile Strength Not Applicable Head Type Knurled Maximum Head Width 0.211 in Minimum Head Width 0.193 in Maximum Head Height 0.086 in Minimum Head Height 0.075 in System of Measurement Inch Head Material Steel Package Quantity 100