GRK RSS (Rugged Structural Screw) Structural Screws are designed for heavy-duty wood-to-wood fastening in structural construction applications. Their robust design provides reliable fastening for beams, posts, ledger boards, and large framing members. The 7-1/4" length offers extended reach for joining thicker lumber and substantial wood components. Ideal for deck framing, timber construction, and structural wood assemblies, these screws offer a practical alternative to traditional lag screws in compatible applications. Follow the manufacturer's installation instructions for proper fastening and performance.