FastenMaster FMLL358B-250 LedgerLOK Ledger Board Fastener, 3-5/8 Inches, 250-Count Product Description Fasten master, 250 Pack, 3-5/8", Ledgerlok Screw, Engineered To Attach A Double Ledger Board To A House Without Pre-Drilling, The Ledgerlok Replaced A 1/2" Lag, IBC/IRC Code Compliant, ESR #1078 ACQ Approved. From the Manufacturer Save time, money, and labor costs. LedgerLOK is the first fastener engineered to attach deck ledger boards to the rim board of the house with no predrilling. No need to predrill and hand-ratchet in 1/2 inch galvanized lags and washers. LedgerLOK also has stronger shear values than 1/2 inch galvanized lag screws. Plus, with LedgerLOK's smaller shank diameter, even a cordless drill (14.4 volts or higher) zips them right in, saving on battery life and additional tooling costs. Each pack size contains a free 5/16 inch driver bit. LedgerLOK fasteners are American made. Features Manufactured in United States Easy to use Highly durable Nationally code compliant ESR #1078 Head-stamped for easy code inspection Built in washer hex-head design eliminates the need for additional washers Costs significantly less per piece than 1/2 inch galvanized lags and washers Guaranteed corrosion resistance for the life of the project; ACQ approved USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.