FastenMaster FMHLGM412-250 HeadLOK Structural Wood Screw, 4-1/2", 250-Piece In Stock Forged in one piece

Forged in one piece

Polypropylene construction with Viton Seals

5 gpm flow restrictor

Replicates the hydraulics

FastenMaster FMHLGM412-250 HeadLOK Structural Wood Screw, 4-1/2", 250-Piece In Stock Forged in one pieceHeadLOK is a heavy duty structural wood screw that is ideal for many wood applications including deck framing, stair stringers, attaching rigid foam (SIPs), fences, kitchen cabinets and more. The HeadLOK flat head fastener requires no predrilling and offers higher design shear than 3 8" lag screws. The SpiderDrive System contains 8 points of contact, maximizing bit fit and reducing stripping. HeadLOK zips right in and creates a great finished look.