Hex Head Lag Screw, Material Steel, Finish Hot Dipped Galvanized, Screw Size 3/4 In., Fastener Length 5 in, Thread Style Partially Threaded, Dimensional Standards ASME B18.2.1, Pack Size Small, System of Measurement Inch, Drive External Hex, Drive Size 1 1/8 in, Head Height 0.5 in, Head Style Hex, Head Width 0.768 in, Package Quantity 20