Elevate your next woodworking or framing project with GRK Fasteners’ R4™ Multipurpose Screws. Engineered for strength and ease of use, these #8 x 2-1/2" self-tapping screws combine a fast-bite Zip-Tip™ cutting point with a Star Drive® recess and W-Cut thread design to eliminate pre-drilling and minimize splitting. The bugle-style head countersinks flush every time, while the Climatek® corrosion-resistant finish delivers long-lasting protection in both interior and exterior environments. Supplied in a convenient 650-piece ProPak, these screws are ready to tackle everything from wood-to-wood framing and composite decking to sheet metal and cement fiberboard.

Whether you’re remodeling a porch, building a fence or installing decking topboards, the R4™ multipurpose screw delivers low-torque installation, zero stripping and clean countersinks—every screw, every time.

Key Features

• Zip-Tip™ fast-bite point eliminates pre-drilling and starts on contact
• Star Drive® recess ensures maximum bit engagement and zero cam-out
• W-Cut threads reduce installation torque and prevent material splitting
• Bugle-style countersinking head delivers a clean, flush finish
• Climatek® corrosion-resistant coating for use in pressure-treated wood and outdoor structures
• Self-tapping design works in wood, plastic, sheet metal, cement fiberboard and more
• Paintable finish allows seamless blending with project surfaces