Hex Head Lag Screw, Material Steel, Finish Hot Dipped Galvanized, Screw Size 1/4 In., Fastener Length 1 in, Threads per Inch 10, Thread Style Fully Threaded, Dimensional Standards ASME B18.2.1, Pack Size Bulk, System of Measurement Inch, Drive External Hex, Drive Size 7/16 in, Head Height 0.172 in, Head Style Hex, Head Width 0.26 in, Package Quantity 1600