Value Collection 31805 Fender Flat Washer 5/16 in 18-8 Stainless

Product Description

The VALUE COLLECTION 31805 is a fender flat washer designed for use with 5/16 inch screws and fasteners. Manufactured from Grade 18-8 stainless steel, it provides corrosion resistance suitable for both indoor and outdoor applications. The oversized outer diameter distributes clamping load across a wider surface area, reducing pull-through in softer materials or thin sheet metal. With an inside diameter of 11/32 inches and an outside diameter of 1-1/2 inches, this washer fits standard 5/16 inch fasteners while providing generous load-bearing coverage. Plumbers, electricians, HVAC technicians, and general contractors use fender washers when securing panels, brackets, strut channel, or piping supports where a standard washer footprint is insufficient.

This washer is suited for light-duty fastening applications across residential and commercial mechanical, electrical, and plumbing work. Common uses include securing conduit hangers, pipe straps, equipment mounting brackets, and sheet metal assemblies. The 18-8 stainless steel construction makes it a practical choice in environments with moisture exposure, such as rooftop HVAC installations, pool equipment enclosures, and plumbing chases. Sold individually with a minimum order quantity of 50 pieces, making it appropriate for stocking hardware inventory on service vehicles or in shop bins.

Key Features

• Grade 18-8 stainless steel construction for corrosion resistance in wet or outdoor environments
• Inside diameter of 11/32 inches fits standard 5/16 inch fasteners with appropriate clearance
• Outside diameter of 1-1/2 inches provides an oversized bearing surface to distribute load and reduce pull-through
• Inch measurement system for compatibility with standard SAE fastener sets
• Minimum order quantity of 50 pieces supports bulk stocking for service and maintenance operations

Compatibility

Designed for use with 5/16 inch screws and bolts in standard inch-measure fastener applications. Suitable for use with stainless, zinc-plated, or galvanized fasteners in mechanical, electrical, and plumbing trade installations.

Installation Notes

Install using standard hand tools appropriate for the fastener type and application. Ensure the washer is seated flat against the mating surface before tightening to achieve even load distribution. When used in electrical or mechanical enclosures, verify that the washer material is compatible with the assembly requirements outlined by NEC or applicable local codes. Do not use in applications requiring a locking washer without also installing an appropriate lock washer in the fastener stack.