GRK Fasteners RSS Structural Screw #10 x 3-1/8" ProPak – 225 Count

Experience the ultimate in heavy-duty fastening with GRK’s RSS Rugged Structural Screws. Engineered for demanding wood-to-wood connections, these #10 × 3-1/8″ screws deliver high tensile, torque and shear strength—making them an ideal lag-screw alternative for framing, ledger boards, decking and more. The patented design bites instantly into both softwoods and hardwoods, reducing splitting and ensuring a secure, zero-gap joint every time.

Built for interior and exterior use, RSS screws feature a corrosion-resistant Climatek finish and a robust alloy-steel construction. Proprietary elements like the Zip-Tip point and W-Cut thread profile lower driving torque and speed installation, while the integrated washer-head provides maximum clamping force. Count on GRK RSS for code-approved, reliable structural performance in treated lumber and intermittent moisture environments.

Key Features

• Ideal for structural wood-to-wood fastening
• Interior/exterior use with Climatek corrosion protection
• Integrated washer head for zero-gap joints and maximum clamp
• Star drive recess ensures zero-strip, high-torque installation
• Zip-Tip self-drill point for fast penetration and no pre-drilling
• W-Cut thread profile reduces driving torque for effortless driving
• Unique dual-thread design draws substrates tight and meets ESR-2442 approval