USS Flat Washers

At FMW Fasteners, we proudly serve a number of different types of customers, including do-it-yourself enthusiasts as well as B2B and B2C operations like construction companies, installers, manufacturers and more. No matter who you are or what type of fasteners you’re looking for, including USS flat washers, FMW Fasteners delivers the solution.

What Are USS Flat Washers?

USS flat washers are a little bit different than fender washers, or more traditional washers. They offer a normal outer diameter but an inner diameter that is greater than what you would find with a fender washer. USS stands for United States Standard, and USS flat washers were initially designed and developed to meet a wide range of common applications in the manufacturing industry.

So what's the difference that distinguishes SAE vs. USS flat washers? Since SAE flat washers were created by the Society of Automotive Engineers to fulfill broad requirements within the automotive industry, they have a smaller outer diameter and thinner gauges than USS versions.

What Are USS Flat Washers Used For?

These washers offer outer diameters, inner diameters and thicknesses that are designed for widespread use and stability, which is what makes them such a popular choice in most industrial applications in each field of manufacturing, repair and maintenance. In practice, USS flat washers are placed under nuts or the heads of bolts to allow for rotation without distorting a surface. These washers also allow for incredible tightness at the joint, which helps distribute pressure and prevent potential leaking.

Today, USS flat washers are used for any number of tasks, both by service professionals and do-it-yourself enthusiasts who are seeking to achieve professional-grade results. When you want a vast selection of USS flat washers that meet the highest quality standards, look no further than FMW Fasteners.