FastenMaster 3-5/8 In. Ledgerlok Deck Screws, 250 Pc are specifically engineered for securely attaching deck ledger boards to the rim joist of your house. These screws are designed to drive directly through pressure-treated ledger boards, sheathing, and band joists without the need for predrilling, making your deck installation faster and easier. The LedgerLok fasteners eliminate the requirement for traditional 1/2" lag screws or other ledger board fasteners, thanks to their built-in washer and durable epoxy-coated finish. Made from heat-treated carbon steel, these screws feature a hex head and hex drive for reliable fastening. Each package contains 250 screws measuring 0.305 inches in diameter and 3-5/8 inches in length, providing ample supply for your deck project. Model Number: FMLL358B-250