Crucial Functions of Fastener Assembly Washers

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When many components are required to create a moving part, it is typically the smallest ones that are crucial. The Round Flat Washers in fastener assemblies are a perfect example. They are made in a wide range of materials, sizes, thicknesses, and shapes and have several functions.


Traditional materials for washers include brass, stainless steel, aluminum, and copper. These natural metals are corrosion resistant and strong to a certain degree, but are not suitable for all applications.

Applications that include high pressure, or a wide range of temperature variances, will require washers made from alloys. These alloys combine ingredients to make the washers stronger for durability and stability.

Monel, for example, is an alloy that combines nickel with carbon, iron, copper, and silicon. Inconel is a nickel-chromium alloy. Nylatron is an alloy that combines nylon, plastics, and polymers. Other specialized materials can also be used to manufacturer washers.


Spacing is a primary function of any type of washer. It keeps larger components from hitting each other directly. That reduces friction and helps maintain a consistent temperature while parts are in motion. Surface distortion over time is also prevented with the use of a washer.

When placed between a nut and bolt or screw, washers distribute weight evenly to avoid pressure points. That application also ensures the bolt or screw will not shift and create gaps as it is placed. The use of a washer also cuts down on maintenance costs and time. Loosening and tightening components is faster and easier.

Large Quantities

Manufacturing, automotive, aerospace, and industrial applications require massive quantities of washers on a regular basis. Leading manufacturers of washers maintain over a billion of them in various sizes and materials so they can be delivered quickly when an order is placed. Hundreds of thousands of washers in special sizes are also available.

Custom washers can be manufactured to accommodate unique needs, suit innovative inventions or prototypes, or contribute to a new design of aircraft, military equipment, or medical devices. Military washers in over twenty different specifications are produced as well. Fast quotes can be requested online. Ordering can be completed online as well so browse the site to view extensive options.