GRK Fasteners R4 Multipurpose Screw #10 x 3-1/8" Handy Pack

The GRK Fasteners R4 Multipurpose Screw is engineered for professionals and DIY-ers alike who demand speed, strength and versatility. Featuring Climatek® corrosion-resistant coating, these screws perform reliably in both interior and exterior conditions—even in pressure-treated lumber and intermittent moisture environments. Precision-formed to reduce splitting and ensure consistent countersinking, the R4 series is code-approved (ESR-3201) for structural applications from framing and fencing to decking and remodeling.

With an innovative Zip-Tip® point and Fast Bite® tip, these screws drive in one smooth step—eliminating pre-drilling and reducing installation torque. The Star Drive® interface fits GRK bits with minimal wobble, while the bugle head and W-Cut thread maximize holding power and material integrity. Whether you’re building a deck, installing topboards, or tackling interior/exterior remodeling, the R4 Multipurpose Screw delivers fast starts, secure connections, and proven performance.

Key Features

• Ideal for multipurpose wood-to-wood framing
• Suitable for interior and exterior use
• Climatek® coating for corrosion resistance in treated lumber
• Zip-Tip® point eliminates pre-drilling
• Fast Bite® tip provides a fast start and one-step installation
• Star Drive® interface reduces cam-out and bit wobble
• Bugle head design ensures clean countersinking
• W-Cut thread lowers installation torque and enhances grip
• ESR-3201 approved for structural applications