SPAX® PowerLags® T-Star Washer Head Wood Lag Screws 5/16 In. x 4 In. (5/16" x 4")

SPAX® T-Star Washer Head construction fasteners with HCR® coating are intended for wood-to-wood connections in exterior structural applications when attaching treated lumber components. These fasteners are designed with a low profile large diameter wafer head for applications requiring additional surface area under the head for superior pull-down force. Ideal for deck ledger attachment and multi-ply beam applications.