Fender Washers

Fender washers are flat, thin, and circular metal discs with a centrally located hole. These washers are designed to distribute the load of a threaded fastener, such as a bolt or screw, over a larger surface area. The term "fender washer" is derived from their common use in automotive applications, particularly in conjunction with fender bolts, but they are also employed in various other mechanical and construction contexts.

Typically made from materials like steel, stainless steel, or brass, fender washers are available in various diameters and thicknesses to accommodate different fastener sizes and load requirements. They are characterized by their relatively large outer diameter compared to standard USS or SAE washers, which provides enhanced support and stability, particularly in applications where the material being fastened may be soft or prone to deformation under pressure.

The wide outer diameter of fender washers helps prevent fasteners from pulling through or damaging the surface material, distributing the applied load more evenly. This can be particularly useful in situations where the fastener is securing a relatively heavy or bulky object, as it helps to minimize the risk of the fastener causing damage or becoming loose due to uneven pressure distribution.

In addition to their functional benefits, fender washers are often preferred for aesthetic reasons in visible applications due to their larger size and sleek appearance. Overall, fender washers play a crucial role in ensuring the structural integrity and longevity of various assemblies by providing reliable load distribution and support for fasteners.

Fender Washer Resources

Fender Washer Frequently Asked Questions

Q: When should you use a fender washer?

A: Fender washers provide more surface area, which divides the load better. This makes fender washers better to use with soft or thin materials.

Q: What is the difference between a flat washer and a fender washer?

A: The outside diameter of fender washers are much larger in proportion to SAE and USS flat washers.

Q: When should I use stainless steel fender washers?

A: Stainless steel fender washers should be used for outdoor applications or when the washer is exposed to elements that could cause it to rust. Stainless steel provides better corrosion protection compared to plain or zinc plated.