Extra Thick Fender Washers

When do I need an extra thick fender washer?

A standard fender washer already spreads load with a wide diameter, but under higher clamping force or on very soft material it can flex, cup, or pull into the hole. An extra thick fender washer adds material so it resists that deformation, holding its shape while still bridging thin sheet, soft wood, and oversized holes. Made from 18-8 stainless, it also resists corrosion for outdoor and freshwater use. Choose extra thick where a standard fender washer would bend under load or where a stiffer, more durable bearing surface is needed.

Why choose extra thick fender washers

• Wide and stiff: oversized diameter plus added thickness.
• Resists bending: extra material holds shape under load.
• Corrosion resistant: 18-8 stainless resists rust in wet and outdoor use.
• Bridges gaps: spans oversized holes without dishing.

Common applications for extra thick fender washers

• Higher-load thin-material joints
• Soft wood and composite mounting
• Oversized and slotted holes under load
• Outdoor and freshwater heavy-duty work

For the heaviest version, see extra heavy extra thick fender washers, and browse every option on the main fender washers category.

Extra Thick Fender Washers FAQ

When should I use an extra thick fender washer?

Use one where a standard fender washer would flex or cup under load, or where a stiffer, more durable oversized bearing surface is needed.

What material are extra thick fender washers?

18-8 stainless, which resists corrosion in wet and outdoor use while providing the added thickness for stiffness.

How is this different from an extra heavy fender washer?

Extra heavy extra thick fender washers add even more material and diameter for the most demanding heavy-duty load spreading.