5/16 in. x 3-1/8 in. Rugged Structural Screw 100 Piece

GRK’s RSS Rugged Structural Screw is a structural fastener designed for ease of installation and the strongest of connections. RSS fasteners drive into most woods without the need for pre-drilling. The specially engineered design results in a low-effort installation, especially compared to conventional lag screws. Applications: heavy duty framing, LVL fastening, structural decking, ledger boards, multi-ply, and interior and exterior remodeling.