Hex Head Lag Screw Material Steel Finish Hot Dipped Galvanized Screw Size 1/2 in Fastener Length 2 in Thread Style Partially Threaded Dimensional Standards ASME B18.2.1 Pack Size Small System of Measurement Inch Drive External Hex Drive Size 3/4 in Head Height 0.344 in Head Style Hex Head Width 0.515 in Package Quantity 50