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Spring Washer

Your Leading Spring Washer Supplier

Since 1997, we have been committed to the production and sales of fasteners for steel structure construction. China's top 10 fastener manufacturer, dreaming of becoming the world's top 10. High-strength hex bolt and nut, Foundation bolt and shear stud. It mainly provides supporting products for various end customers in industries such as steel structure construction projects, bridges, large-scale machinery and equipment, wind power, nuclear power, and high-speed rail.

Why Choose Us

Advanced equipment

Our factory is equippedl with professional Spheroidizing furnace, drawing machine, multi-station cold heading machine, high-speed thread rolling machine, nut forming machine, tapping machine, heat treatment mesh belt furnace, phosphorus saponification production line, etc, to meet production needs.

Complete qualifications

The company has passed ISO9001 quality certification system as well as international certification SGS, CE.

Our service

Our team provides a variety of packaging to meet your needs; Multiple quality inspections to meet your quality requirements; All fasteners sold by our company are guaranteed for three years, brand first.

Types of Spring Washer

Serrated washers (lock tooth)
Serrated washers work by gripping into a surface with their teeth. The teeth make serrations or scratches in the material, and the friction created helps to prevent a bolt from loosening.

You can get internal serrated washers, external serrated washers, and serrated washers that are both internally and externally serrated. Internal serrated washers have the advantage of enabling a cleaner finish, as the serrations are hidden better.

Spring washers
Spring washers use spring action to press against a bolt to prevent it from loosening. The spring action only comes into effect when a bolt starts to become loose. When a bolt is tight against a spring washer and the spring washer is flat, the spring does not exert any force. However, when the bolt starts to loosen, the spring exerts force on the bolt which helps prevent it from rotating.

Split washers are a common type of spring washer. Conical washers achieve a similar spring effect by pushing against a bolt.

Schnorr safety washers
Schnorr safety washers use both serrated teeth and spring action. While their serrated teeth create friction, their conical shape produces a spring action when tightened against a bolt.

Nord-Lock washers
Nord-Lock washers use an innovative method to resist vibrations, which does not rely on friction or spring action. Nord-Lock washers use a pair of interlocking washers, which exert increasing force on the underside of a bolt as back-out occurs. Because Nord-Lock washers use tension rather than friction, they are capable of stopping loosening completely.

Advantages of Spring Washer

Prevent loosening under vibration, shock, or dynamic load — By exerting constant axial force and friction, spring washers help ensure the nut stays tight even when the assembly is jostled.

Compensate for material movement — Thermal expansion/contraction or slight material settling can loosen fastened joints; a spring washer’s elasticity helps maintain tension despite such changes.

Absorb shock and damp vibrations — The washer functions like a small shock-absorber or cushion, protecting the joint integrity under dynamic loading.

Maintain preload in assemblies with fluctuating conditions — If parts shift slightly over time (e.g. due to cyclic loads or settling), the spring washer acts to preserve clamping force and prevent loosening.

Applications of Spring Washer

Automotive industry

Spring washers are used extensively in the automotive industry, where they help to secure components such as engines, transmissions, suspension systems, and various other mechanical assemblies.

Construction and heavy equipment

Spring washers are essential in the construction and heavy equipment industries, where they are used to secure bolts, nuts, and other fasteners in machinery, heavy vehicles, and structural connections.

Electrical and electronics

Spring washers are used in electrical and electronic devices to secure components, prevent loosening, and maintain proper grounding connections.

Aerospace and defense

In the aerospace and defense industries, spring washers are critical for ensuring the integrity of aircraft, spacecraft, and military equipment, where reliability and safety are paramount.

Machinery and industrial equipment

Spring washers are used in a variety of industrial machinery and equipment, such as compressors, pumps, gearboxes, and other mechanical systems, to prevent loosening and maintain proper alignment.

Furniture and appliances

Spring washers are also found in household items, such as furniture and appliances, where they help to secure connections and prevent rattling or loosening over time.

FAQ

Q: How do spring washers work?

A: Spring washers work by creating a constant tension or pressure between the mating surfaces of a bolt and the surface it is tightened against. This tension is generated by the spring-like action of the washer, which allows it to compress and expand as the bolt is tightened and loosened.

Q: How do you choose the right type of spring washer for an application?

A: The choice of spring washer type depends on the specific requirements of the application, such as the level of vibration, the amount of clamping force needed, the available space, and the environmental conditions.
Factors like the size and material of the bolt, the surface finish, and the load-bearing requirements should also be considered when selecting the appropriate spring washer.

Q: Can spring washers be used with any type of bolt or fastener?

A: Spring washers can be used with a variety of bolt and fastener types, including hex bolts, machine screws, and other threaded fasteners.
However, the specific type and size of the spring washer should be selected to match the dimensions and requirements of the particular bolt or fastener being used.

Q: How do you install spring washers correctly?

A: When installing spring washers, it is important to ensure that the washer is positioned correctly between the bolt head or nut and the surface it is tightened against. The serrated or toothed edges of the washer should be facing the surface to be secured, allowing the teeth to bite into the material and create the necessary tension.
The bolt or fastener should be tightened to the recommended torque specification to ensure the proper clamping force is achieved.

Q: Can spring washers be reused?

A: Spring washers can generally be reused, as long as they are not damaged or deformed during the initial installation or removal process.
However, it is recommended to inspect the washer for any signs of wear or damage before reusing it, as this can affect the effectiveness of the locking mechanism and the overall reliability of the connection.

Q: What is the difference between a spring washer and a flat washer?

A: The main difference between a spring washer and a flat washer is their function and design. A flat washer is a simple, non-spring-loaded washer that is used to distribute the load of a bolt or fastener over a larger surface area.
In contrast, a spring washer is designed to provide a constant tension or pressure between the mating surfaces, helping to prevent the bolt from loosening over time.

As one of the leading spring washer manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please feel free to wholesale high-grade spring washer at competitive price from our factory. Welcome to view our website for more information.

DIN 127 Spring Washer, DIN 137 Washer, bolt and nut and washer