FastenMaster FMLL005-50 5 in. Ledgerlok Screw

LedgerLok is the first fastener engineered to attached deck ledger boards to the rim board of the house with no pre-drilling. No need to predrill and hand-ratchet in 1/2 inch galvanized lags and washers. LedgerLok also has stronger design shear values than 1/2 inch galvanized lag screws. Plus with LedgerLok smaller shank diameter even a cordless drill 14.4 volts or higher zips them right in saving on battery life and additional tooling costs.