GRK Fasteners RSS™ 5/16 x 3-1/8 Inch, Rugged Structural Screws, 500 PCS, Rust Resistant Climatek™ Coating, Interior and Exterior Use, Heavy-Duty Framing & Decking Screws, Fast Bite Tip with Star Drive

GRK Fasteners RSS™ 5/16 x 3-1/8 Inch, Rugged Structural Screws, 500 PCS, Rust Resistant Climatek™ Coating, Interior and Exterior Use, Heavy-Duty Framing & Decking Screws, Fast Bite Tip with Star Drive

• Heavy Duty Lag Screw Alternative: Eliminates pre-drilling in most woods with Zip-Tip technology. Installs 3x faster than traditional lag screws
• ESR-2442 Code Approved For Structural Applications: Engineered for professional-grade connections in heavy duty framing, multi-ply beams, and timber framing. Integrated washer head delivers maximum clamping force for zero-gap joints in LVL, LSL, and engineered lumber.
• Advanced Corrosion Protection: Rust resistant Climatek coating provides exceptional durability for outdoor use and in pressure-treated lumber applications
• W-cut Thread Design: Reduces installation torque by 40% for smoother, faster driving. CEE threads minimize splitting in dense hardwoods, engineered lumber, and laminated beams.
• Precision Engineering: Star/Torx drive recess with 6 points of contact prevents stripping and minimizes wobble between screws and bits.