Washers are discs of metal or plastic often placed under the head of a bolt or nut to distribute the load and prevent damage to the surface. There are several types of washers designed for specific purposes. One of these types is the tab washer.

Tab washers are one type of washer that has a unique shape and function. But what are they exactly? We’ll take a closer look at tab washers, explore their different uses and applications, and discuss the materials they’re made from.

What are Tab Washers?

A tab washer is a type of washer with a tab or projection extending from one end. The purpose of this tab is to help prevent the washer from spinning after fastening two pieces together. It’s essential when working in harsh environments that require heavy vibration or extreme heat.

Tab washer work by creating a physical stop that the fastener (bolt or nut) can butt up against.

Once a bolt is tightly in place, the tab section of the washer gets knocked up against the nut or bolt head, which locks it in position and stops it from spinning. That’s a significant advantage over other round washers that can easily rotate, making it difficult to achieve a tight, secure fit.

There are two main types of tab washers- internal and external. Internal tab washers have the projection on the inside diameter (ID), while external tab washers have them on the outside diameter (OD). The tabs can be one, two, or multiple.

You may also get custom-made designs for specific applications. As a leading manufacturer since 1934, Minneapolis Washer and Stamping can provide countless non-standard tab washer configurations that are unique to your project.

Uses and Applications

Tab washers have a wide range of uses, making them versatile fasteners. They’re commonly used in criticalTab Washer assemblies such as:

  • Power plants
  • Navel ships
  • Heavy equipment

What are Tab Washers Made of?

Tab washers come from various materials, depending on their intended application. They can be:

  • Low Carbon Steel
  • Spring Steel
  • Stainless Steel
  • Monel
  • Aluminum
  • Brass
  • Hastelloy.

What Makes Tab Washers Unique?

Several features make tab washers unique and ideal for specific applications. These include:

  • Their shape prevents them from spinning, making them ideal for use in harsh environments
  • They’re versatile and can be used in a wide range of applications
  • They’re a reliable and secure fastener

Minneapolis Washer and Stamping is your go-to resource for tab washers. With over eighty years in business, we have the expertise and experience to provide the perfect solution for your needs. Contact us today and enjoy high-quality washers at any order size.

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