Prime-Line 5/16 in. x 2 in. A307 Grade A Zinc Plated Steel External Hex Lag Screws (50-Pack)

Lag screw bolts are used in place of standard wood screws whenever the mounting surface must bear a heavy load. The hex head allows for lag screws to be tightened with more torque than can be used on Phillips head screws, though a pilot hole is still required prior to installation. Note that lag screws do not accept nuts as they are technically thick heavy-duty wood screws with threads designed to cut into wood. They are ideal for use on decks since installation can be accomplished without having access ...