Value Collection 3SWFD905 Fender Flat Washer 5/16 in 18-8 Ss

Product Description

The VALUE COLLECTION 3SWFD905 is a fender flat washer designed for use with 5/16 inch fasteners. Manufactured from Grade 18-8 stainless steel, it provides corrosion resistance suitable for demanding environments including outdoor, marine-adjacent, and wet-area applications. The washer features an 11/32 inch inside diameter, a 1-1/2 inch outside diameter, and a thickness of 0.06 inches. The large outside diameter relative to screw size is the defining characteristic of a fender washer, distributing clamping load across a wider surface area to reduce pull-through on softer or thinner materials. Plumbers, electricians, HVAC techs, and general contractors routinely use fender washers in panel mounting, strap fastening, and equipment anchoring tasks.

This washer is suited for light commercial and residential trade applications where a standard flat washer would provide insufficient bearing surface. Common uses include securing conduit straps, mounting access panels, fastening sheet metal components, and anchoring equipment pads. The 18-8 stainless steel construction makes it appropriate for installations exposed to moisture, mild chemicals, or temperature variation. Sold in multiples of 100 units, this item is intended for professional service stock rather than single-fastener use.

Key Features

• Grade 18-8 stainless steel construction for corrosion resistance in wet and outdoor environments
• Large 1-1/2 inch outside diameter distributes load to minimize pull-through on thin or soft substrates
• 11/32 inch inside diameter fits 5/16 inch screw or bolt shanks with standard clearance
• 0.06 inch thickness provides a low-profile bearing surface without adding excessive stack height
• Inch-measurement system for direct compatibility with standard SAE fastener sets
• Minimum order quantity of 100 units supports service van stock and job-site supply

Compatibility

Designed for use with 5/16 inch screws and bolts in standard SAE fastener applications. The 11/32 inch inside diameter provides typical clearance fit for 5/16 inch fastener shanks across trade and light industrial installations.

Installation Notes

Install with hand tools standard to the trade performing the work. Ensure the fastener shank diameter does not exceed the washer inside diameter before assembly. When working on electrical panels or energized equipment, de-energize and lock out the circuit in accordance with NFPA 70E requirements before installing or removing any hardware. Do not use stainless steel fastener hardware in applications requiring magnetic permeability, as 18-8 stainless is non-magnetic.