Hex Head Lag Screws Material 18-8 Stainless Steel Finish Plain Screw Size 1/2 in Fastener Length 3 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 10