Structural Wood Screw 5/16" x 4" T30 Star (112225) GRK Fasteners

GRK Fasteners 5/16" x 4" Heavy-Duty Structural Wood Screw, T30 Star Drive Head

GRK’s 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.

• 5/16" x 4" (7x100mm).
• 7.3 threads per inch.
• T-30 Star Drive Head.
• Fast Bite Tip: Provides a fast start.
• Zip-Tip™: Eliminates pre-drilling.
• W-Cut™: Low torque, faster drive.
• Precision Fit: Reduces wobble for improved productivity.
• Superior clamping force on the first drive, 20% faster drive time.
• Climatek™ Coating Code: Approved for use in treated lumber.
• Star Drive Recess: Zero stripping, with 6 points of contact.
• ESR-2442 approved for structural applications.

Typical applications include structural decking, general framing, remodeling, structural applications, multi-ply and LVL fastening, ledger board etc.