FastenMaster FMHLGM012-250 HeadLOK Heavy-Duty Flathead Fastener, 12 Inches, 250-Count, Black From the Manufacturer Save time, money, and labor costs. HeadLOK eliminates the need to predrill and hand-ratchet in 3/8 inch galvanized lag screws in wood-to-wood projects. HeadLOK's aggressive threading and sharp gimlet point allows it to zip right into wood or OSB without predrilling. Plus, the wafer head eliminates the need for washers and offers increased pull through strength. Perfect for deck framing, stair stringers, fencing, cabinets, and more! Sizes are perfect for virtually any dimensional wood-to-wood project. HeadLOK fasteners are American made. Features Nationally code compliant stronger design shear values than 3/8 inch lag screws No predrilling--zips right in Patented Spider Drive virtually eliminates cam-out Guaranteed corrosion resistance for the life of the project; ACQ approved Free Spider Driver bit in every package 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.