Washers are small metal discs used to distribute the load of a screw or bolt evenly across a surface. They come in different sizes and shapes, but two of the most commonly used types are Fender washers and SAE washers. If you’ve ever wondered what the differences between these two types of washers are, then you’ve come to the right place. In this blog post, we’ll look at the key differences between Fender and SAE washers and where they are best used.

What is Fender Washer?

A fender washer is a flat washer with a larger outer diameter and an increased inner diameter. It provides a greater bearing surface, thereby increasing its ability to distribute the load from the nut or bolt head over a wider area. Fender washers are typically used to increase the strength of joint connections. Additionally, they help prevent loosening due to vibration or minor discrepancies in thread fit.

What is SAE Washer?

SAE Washer is a fastener commonly used in automotive, industrial and aerospace applications. It comprises an outer steel washer with a rubber or neoprene cushion bonded to the flat side. The purpose of the SAE Washer is to dampen vibrations between the nut and bolt and provide surface sealing protection against dust and debris. It is good for maintaining locking strength on non-critical threaded assemblies and can extend thread life up to five times compared to other fasteners.

Difference Between Fender Washer and SAE Washer

Size:

One of the main differences between Fender washers and SAE washers is their size. Fender washers have a larger outside diameter than SAE washers and a smaller inside diameter. On the other hand, SAE washers have a smaller outside diameter and a larger inside diameter. This difference in size is important because fender washers are designed to be used with bolts that have large heads, such as carriage bolts. On the other hand, SAE washers are designed to be used with smaller and standard heads.

Thickness:

Another key difference between fender washers and SAE washers is their thickness. Fender washers tend to be thinner, which makes them more flexible. This is because they are designed to be used in applications requiring a certain amount of flexibility. On the other hand, SAE washers are thicker and more rigid. This is because they are designed to be used in applications where the load requires a higher degree of support.

Shape:

The shapes of Fender washers and SAE washers are also different. Fender washers are generally round with a small hole in the center, while SAE washers are generally flat with a larger hole in the center. This difference in shape is important because fender washers are designed to be used in applications where the load is spread over a larger surface area. On the other hand, SAE washers are designed to be used in applications where the load is concentrated on a smaller area.

Materials:

Both fender washers and SAE washers are available in different materials, such as stainless steel, brass, and zinc-coated steel. However, the choice of material depends on the application. For instance, fender washers are more commonly used in marine applications with a higher risk of corrosion, while SAE washers are more commonly used in automotive applications.

Best Use:

Fender washers are best suited for applications where there is a need for flexibility and load distribution over a larger surface area. Examples of such applications include marine applications, where there is much vibration, or when attaching items to fibreglass. On the other hand, SAE washers are best suited for applications with stronger and more rigid support. Such applications include automotive construction, where the load can be concentrated on a smaller surface area.

Conclusion:

In conclusion, understanding the differences between Fender and SAE washers is important to ensure the right type of washer used for the specific application. Whether for marine use, automotive construction, or any other application, choosing the right type of washer can make all the difference in ensuring the application is safe and effective. So, the next time you need a washer, make sure you know the key differences between Fender washers and SAE washers and choose the one that best suits your needs.

Bhavesh Yadav

Meet Bhavesh, a seasoned blogger with a wealth of knowledge and experience. From metal products manufacturing to retail, Bhavesh has a diverse background in various industries and is dedicated to sharing his insights and expertise with readers.