5/16 in. x 4 in. Hex Head Hex Drive Stainless Steel Lag Screw
Everbilt. $6.49. In stock.
Lag Screws are hex head screws with thick shafts and coarse threads. They are designed to securely join wood-pieces together in heavy load applications. Commonly used for decks, framing, retaining walls, and wooden playground equipment. Lag Screws can also be used in masonry if combined with a lag shield.