Hard-to-Find Fastener 014973150112 5583/8 x 4-Inch Hex Lag Screws, 3/8 x 4 Diameter: 3/8-Inch Length: 4-Inch Material: Steel Finish: Hot Dip Galvanized Head Style: Hex (Hex) Diameter: 3/8" Length: 4 Inch Material: Steel Finish: Hot Dip Galvanized Head Style: Hex (Hex)