Grip-rite GRSSFW51621225 Structural Screws

Product Description

The GRIP-RITE GRSSFW51621225 is a flat washer head structural screw designed for heavy-duty fastening applications in wood framing and structural assembly. Part of the PrimeGuard Plus line, this screw features a flat washer head profile that distributes clamping load over a wider surface area, reducing the risk of pull-through in structural wood connections. It is suited for licensed contractors, framers, and structural trades working on residential and light commercial construction projects where code-compliant fastening is required.

This structural screw is used in wood-to-wood and framing applications where a standard fastener would not meet load requirements. The flat washer head design makes it well suited for ledger boards, rim joists, post bases, and similar structural connections. It is sold by the box, making it practical for job-site stocking and bulk fastening operations on active construction sites.

Key Features

• Flat washer head design distributes load and reduces pull-through in structural wood connections
• PrimeGuard Plus coating provides corrosion resistance for treated lumber and exterior applications
• Sold by the box for job-site convenience and bulk fastening workflows
• Designed for structural framing connections in residential and light commercial construction

Compatibility

Designed as an OEM-style structural fastener for use in wood framing and structural assembly applications where flat washer head screws are specified.

Installation Notes

Installation should be performed by qualified framers or contractors following applicable building codes, including IRC and IBC fastening schedules. Verify screw length and head type match the engineered connection specification before driving. Use a properly rated driver bit and impact driver or drill to avoid cam-out and ensure full seating of the washer head. Always confirm compatibility with treated lumber chemical ratings when installing in exterior or ground-contact applications.