Wood Screw Finish Zinc Plated Material Steel Drive Phillips Screw Size #4 Fastener Length 3/8 in Head Width 0.225 in Head Height 0.051 in Drive Size #1 Threads per Inch 22 Thread Style Fully Threaded Minimum Thread Length 3/8 in Pack Size Small Maximum Head Width 0.225 in Minimum Head Width 0.195 in System of Measurement Inch Head Type Flat Dimensional Standards ASME B18.6.1 Package Quantity 100