Hex Head Lag Screw, Material Steel, Finish Hot-Dipped Galvanized, Screw Size 5/16 in, Fastener Length 3 1/2 in, Dimensional Standards ASME B18.2.1, Pack Size Small, System of Measurement Inch, Drive External Hex, Drive Size 1/2 in, Head Height 0.219 in, Head Style Hex, Head Width 0.324 in, Package Quantity 50








