ThePipingMart Blog Fasteners 5 Types of Lock Washer and Their Uses

5 Types of Lock Washer and Their Uses

Lock Washers

Lock washers are a small but essential component used in almost every industry. They act as a fastener, helping to secure bolts, nuts, and screws in place, which ensures constant tension and prevents them from loosening. They come in different forms, each designed to cater to other loads, surfaces, and applications. In this article, we’ll take a closer look at the different types of lock washers you need to know to make sure you’re using the right one for your specific needs.


Split Lock Washer

Split lock washers are the most common type. They have a divided cut in the centre that allows them to compress, which creates tension to lock the fastener in place. They are ideal for applications requiring frequent disassembly or where the pin is subject to vibration. They are easy to install, affordable, and readily available.

Toothed Lock Washer

A lock washer has small, pointy teeth around its outer circumference. It is designed to bite into the surface where it’s installed, creating friction and preventing rotation or loosening of the fastener. It is best suited for uneven surfaces where a flat washer wouldn’t seat securely. They are commonly used in automotive and industrial applications.

Spring Washer

Also known as disc springs, spring washers are lock washers that use cylindrical springs to provide tension on the fastener. They are designed to absorb shock, vibration, and thermal expansion. They can be used in various applications, including aerospace, rail, marine, and construction.

Nord-Lock Washer

Nord-Lock washers are unique lock washers designed to provide superior vibration resistance. They feature a multi-lobe wedge design that creates tension on both sides of the bolt. They are commonly used in heavy-duty applications, such as mining and construction machinery.

Wave Washer

A wave washer is a type of washer with a wave-like shape. When installed, the waves flatten out, creating a spring-like tension that locks the fastener in place. They can be used in applications requiring flexibility between components, such as electronic equipment or automotive engines.


In conclusion, lock washers are an essential part of any assembly that needs to stay secure. With the different lock washers available, selecting the one best suited for your application is necessary. Whether it’s a split lock washer for general-purpose use, a toothed lock washer for uneven surfaces, or a Nord-Lock washer for heavy-duty applications, there’s a lock washer available for every need. By understanding the different types of lock washers and their advantages, you can ensure the safety and longevity of your equipment or machinery.

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