GRK Black RSS (Rugged Structural Screw) Structural Screws are designed for heavy-duty wood-to-wood fastening in structural construction applications. Featuring a black finish for a clean, professional appearance, these screws are ideal for exposed wood connections where appearance matters. The 8" length provides extended reach for fastening beams, posts, ledger boards, and larger framing members. Suitable for deck construction, timber framing, and structural wood assemblies, these screws offer a reliable fastening solution for demanding building projects. Follow the manufacturer's installation instructions for proper use.