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A boy outside with a dog. A man is on one knee in the background.
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Fender Washers (30)

Frequently Asked Questions About Fender Washers

Yes, they can be used outside, but the right material depends on the conditions. Zinc-plated fender washers handle general outdoor and farm use, while stainless steel is the better pick for high-humidity or damp settings. Neoprene versions add a waterproof seal around the bolt, making them a strong option for roofing, gutters and exterior siding.
Fender washers have a smaller center hole relative to their outer diameter, so more of the rim makes contact with the surface. A standard flat washer has a proportionally larger hole, which makes it better suited to solid surfaces where pull-through is not a concern.

Fender Washers

A bolt alone isn't always enough to hold a connection, especially when the material underneath is thin, soft or already worn. A fender washer solves that by spreading the load from the fastener across a wider area, so it holds without pulling through. These washers are available in Tractor Supply’s hardware lineup, so you’re covered for quick fixes and big projects.

Spread the Load, Protect the Surface

A fender washer has a large outer diameter and a relatively small center hole, so the flat rim sits against the material and spreads force from the bolt head or nut across a wide area. That distribution prevents pull-through on surfaces that can't handle concentrated pressure, whether the material is thin plywood, sheet metal or a soft panel that's already showing wear. The wide face also covers damaged or oversized holes, making these washers just as useful for repairs as for new work.

Flat washers do similar work, but the ratio of hole size to outer diameter is different, as flat washers boast a larger inner diameter. Fender washers put proportionally more surface in contact with the material, which is what makes them the stronger option when the surface itself is part of the problem.

Zinc-Plated Styles

Working outside means metal parts take a beating from rain, humidity and mud. Zinc-plated fender washers carry a protective coating that shields the steel from surface moisture, making them a dependable choice for sheds, fencing and farm building fasteners. Stainless-steel versions resist corrosion through the full thickness of the metal rather than just the surface layer, so they hold up anywhere standing water or runoff is a regular issue. 

Flexible, Waterproof Neoprene Styles

Metal panels on a roof or siding job move with temperature and wind, and a rigid washer doesn't always keep up. Neoprene fender washers are made from flexible rubber that compresses when the fastener tightens, forming a seal that keeps water out at the bolt point. That seal matters on outbuildings, gutters and any exposed fixture where a slow leak causes damage over time. Neoprene also absorbs mild vibration, which helps keep connections from coming loose on surfaces that flex or rattle.

Find Fender Washers at Tractor Supply

Fender washers come into play on barn roofing, fence repairs, equipment panels and plenty of other jobs where a standard washer would pull right through. Our home improvement range carries stainless, zinc-plated and neoprene fender washers across a full range of bolt sizes. Shop on our website or swing by your local Tractor Supply store to find the right fit for your next project.