High-Quality Fender Washers

What is a Fender Washer?

A fender washer is a highly versatile flat washer distinguished by its unique geometry: a standard-sized inner hole paired with a significantly oversized outside diameter (OD). Originally engineered for the automotive industry to install and repair auto body fenders, this massive outer bearing surface expertly distributes heavy clamping loads over a much wider area than a standard flat washer. Manufactured from premium, industrial-grade materials, they provide essential support for thin, soft, or fragile mating surfaces.

Design Features and Common Applications

Because of their ability to spread extreme tension across a wide surface area, fender washers are highly favored across a multitude of industries beyond automotive repair:

• Sheet Metal and Auto Body: The oversized working area prevents the bolt head or nut from crushing, warping, or pulling through thin sheet metal during heavy vibration or tightening.
• Construction and Drywall: They provide the critical extra support needed when fastening signs, wood paneling, and drywall, ensuring the fastener doesn't break through the fragile backing material.
• Plumbing and Electrical: Highly effective for creating secure connections in plumbing and electrical assemblies, especially when mounting hardware to oversized, rusted, or irregularly drilled holes.

Request a Quote Today

Have a question about our manufactured fender washers or need help determining the exact outside diameter required for your sheet metal assembly? Contact our team by using our secure online form to submit your project details. You can also give us a call today to speak directly with our fastener specialists. We look forward to speaking with you!