Grip-rite GRSSFW3831220 Flat Washer Head Structural Screws

Product Description

The GRIP-RITE GRSSFW3831220 is a flat washer head structural screw from the PrimeGuard Plus line, engineered for structural fastening applications in wood-frame construction. The washer head design distributes clamping load across a wider bearing surface, reducing the risk of pull-through in structural panel and framing connections. These screws are suited for use by framing carpenters, structural contractors, and general construction crews working on load-bearing assemblies where code-compliant fastening is required.

Flat washer head structural screws are commonly used in residential and light commercial wood framing, sheathing attachment, and ledger board connections. The PrimeGuard Plus designation indicates a corrosion-resistant coating, making these screws appropriate for treated lumber applications where contact with ACQ or other preservative-treated wood is expected. Installation is performed using standard power drive tools compatible with the drive style of this screw.

Key Features

• Flat washer head design increases bearing surface and reduces pull-through risk
• PrimeGuard Plus coating provides corrosion resistance for use with treated lumber
• Structural screw construction suited for load-bearing framing connections
• Designed for use with standard power fastening tools

Compatibility

Designed as an OEM-style structural fastener for wood-frame construction applications requiring flat washer head screws in residential and light commercial framing.

Installation Notes

Installation should be performed by a qualified carpenter or structural contractor in accordance with applicable building codes and project engineering specifications. Ensure the drive tool is set to the correct torque clutch setting to avoid overdriving and compromising the fastener head. When fastening into preservative-treated lumber, verify that the screw coating meets local code requirements for compatibility with the specific treatment chemical used.