GRK Fasteners R4 Multipurpose Screw #10 x 3-1/8" ProPak (350 Count)

GRK R4™ #10 x 3-1/8" multipurpose screws are engineered to tackle a wide range of woodworking and decking applications—no pre-drilling required. The patented Zip-Tip underhead with cutting teeth and six self-contained pockets evacuates debris and creates a clean countersink without cracking or splitting. Combined with a W-Cut thread profile and Fast Bite Tip, these self-tapping screws drive quickly with low torque and deliver a precision-fit connection every time.

Each ProPak includes 350 premium, partially threaded fasteners featuring a bugle-style head that seats flush, a Torx drive that minimizes cam-out, and Climatek™ coating with an anti-corrosion topcoat for interior or exterior use—even in treated lumber and harsh environments. Whether you’re framing, fencing, decking or remodeling, GRK R4™ screws provide professional-grade strength and reliability.

Key Features

• Ideal for multipurpose wood-to-wood framing, decking, fencing and more
• Zip-Tip design eliminates pre-drilling for one-step installation
• Fast Bite Tip provides rapid screw start and improved productivity
• W-Cut thread profile reduces installation torque for easier driving
• Precision Torx (star) drive minimizes wobble and bit cam-out
• Climatek™ corrosion-resistant coating with anti-corrosion topcoat
• Partially threaded, self-tapping screw rated for structural use (ESR-3201)