GRK RSS STRUCTURAL SCREW - 5/16" x 3-1/8"The GRK RSS (Rugged Structural Screw) is an ICC-ES code-approved lag screw alternative that installs faster with no pre-drilling required. The Climatek coating provides corrosion resistance for both interior and exterior structural applications such as ledger boards, beam connections, multi-ply framing, and stair stringers.
- Size: 5/16" x 3-1/8"
- T-30 Star drive recess for zero-strip performance
- W-Cut threads reduce torque for fast, easy driving
- Zip-Tip eliminates the need for pre-drilling in most softwoods
- Integrated washer head provides a flush bearing surface
- Climatek coating for indoor/outdoor corrosion resistance
- ICC-ES ESR-2442 approved for structural applications
- Lag screw replacement for heavy-duty framing
- Sold individually (1 screw)