GRK RSS (Rugged Structural Screw) Structural Screws are designed for heavy-duty wood-to-wood fastening in structural construction applications. Their robust design provides secure fastening for beams, posts, ledger boards, and large framing members. The 8" length offers extended reach for joining thicker lumber and substantial wood components. Ideal for deck construction, timber framing, and structural wood assemblies, these screws provide a practical alternative to traditional lag screws in compatible applications. Follow the manufacturer's installation instructions for proper fastening and performance.