Cup Washers

Custom Gaskets for Every Application
Stephens Gaskets is Your Reliable Supplier for Cup Washers
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Bespoke Manufacturing


Instant Quote Service

Worldwide Delivery


Various Gauges/Thicknesses

Bespoke Manufacturing


Instant Quote Service

Worldwide Delivery


Various Gauges/Thicknesses

Global Leaders in Shim Solutions

As a trusted provider of shim solutions, we serve OEMs and businesses globally.

At Stephens Gaskets, we are a proud supplier of Cup Washers that can be custom made to meet the needs of our customers. Moreover, our experienced team is equipped with the latest technology and machinery to manufacture high-quality washers that are built to last.

If you’re seeking high-quality Cup Washers with a quick turnaround, look no further.

Our reputation as the best in the business is well-deserved. With over 70 years of experience delivering top-notch products that meet both your budget and timeline. Our commitment to quality and efficiency is unwavering.

What are Cup Washers?

These washers are a type of washer used in mechanical assemblies to provide a neat finish and distribute the load of a threaded fastener like a screw or a nut. They have a cup-shaped design, which helps to contain, seat, and support the head of the fastener. This not only enhances the appearance of the assembly but also adds a protective barrier against damage to the surface being fastened.

At Stephens Gaskets, we offer these washers that are perfect for use in decorative finishes or in applications where the surface integrity is crucial. They are especially useful in carpentry and furniture, where the appearance of the final product is important. Our washers are available in various materials and sizes to suit different applications and aesthetic requirements. Whether you need them for a protective finish or for their aesthetic appeal, we have options that can meet your needs.

Cup Washer Benefits:

Cup washers offer several benefits in various applications, making them a valuable choice for both functional and aesthetic purposes. Here are some key benefits of using cup washers:

Enhanced Aesthetic Appeal:

These washers have a smooth, curved surface that provides a finished look to the assembly. This makes them ideal for use in visible areas where the appearance of the fastener assembly is important, such as in furniture, decorative fixtures, and architectural details.

Increased Load Distribution:

The cup-shaped design of the washer helps to distribute the load of the fastener more evenly across the surface of the material. This can help prevent damage like indentation or cracking, particularly in softer materials or thin surfaces.

Protection of the Material Surface:

By covering the fastener head and the surrounding area, these washers protect the surface from scratches and wear that could otherwise occur during the installation of the fastener or during regular use.

Improved Structural Integrity:

In applications where the joint integrity is crucial, these washers can enhance the grip and prevent loosening due to vibrations or regular movements, thus maintaining the structural stability of the assembly.

Versatility in Applications:

Due to their design, cup washers are versatile and can be used in various applications ranging from mechanical to decorative. They are available in different materials like steel, brass, and plastic, each suitable for specific environments and purposes.

At Stephens Gaskets, we understand the importance of quality and precision in components like cup washers, ensuring that they not only meet the functional requirements but also contribute to the overall aesthetic and durability of the application. Whether you need them for a technical application or a visual enhancement, our cup washers are designed to offer superior performance.

What are the applications of Cup Washers?

Cup washers are versatile components used across a variety of industries and applications due to their unique design and functional benefits. Here are some of the key applications where cup washers are commonly used:

Furniture Assembly:

Cup washers are often used in furniture for both structural and aesthetic purposes. They help protect the surface of the furniture while providing a clean, finished look around screw heads, particularly in visible joints.

Automotive Components:

In automotive applications, cup washers can be used to ensure that fasteners remain tight and evenly distribute load, which is crucial for both safety and durability in automotive assemblies.

Electronics & Appliances:

They are utilised in electronics and household appliances to secure components tightly and protect the housing of the device from potential damage during the installation of screws.

Architechtural Detailing:

They are also applied in architectural fittings to add a decorative touch while ensuring that fixtures are securely attached and that the load is evenly distributed, preventing damage to surfaces.

Aerospace & Defence:

In aerospace and defence, the precision and reliability offered by cup washers are critical for securing components in applications that are subject to extreme conditions and vibrations.

At Stephens Gaskets, we provide cup washers that cater to these diverse applications, ensuring that whether the requirement is for structural integrity, aesthetic finishing, or protection against environmental factors, our products deliver optimal performance and reliability.

Looking for a Cup Washers Supplier?

Stephens Gaskets is a leading supplier of high-quality Cup Washers. With over 70 years of experience in the industry, we have a deep understanding of the needs of our customers. We commit ourselves to providing top-notch products and services for companies nation wide.

Get in touch with us today to learn more about our Cup Washers and how we can help you with your next project.

What are the painhooks of Cup Washers?

While cup washers provide numerous benefits and are versatile across various applications, there are some challenges or pain points associated with their use. Here are a few common issues that might arise:

Material Compatibility: One potential issue with cup washers is ensuring that the material of the washer is compatible with the material of the fastener and the substrate. Different materials can react differently under various environmental conditions, leading to problems like corrosion if not properly matched.

Cost: Because they are specialised components, cup washers can be more expensive than standard flat washers.

What are the industry specific (manufacturing) material recommendations for Cup Washers?

In manufacturing, the choice of material for cup washers depends significantly on the specific requirements of the industry and the environment in which they will be used. Here are some common material recommendations for cup washers in various sectors of the manufacturing industry:

Stainless Steel:

This is one of the most versatile and widely used materials for cup washers, especially in industries where corrosion resistance is a priority. Stainless steel washers are ideal for use in automotive, marine, and aerospace applications due to their durability and resistance to rust and corrosion.


Lightweight and corrosion-resistant, aluminium washers are suitable for aerospace and automotive industries where reducing weight is crucial. They also resist corrosion from environmental factors, making them suitable for outdoor applications.

Silicone Rubber:

For applications requiring a softer material that can compress and provide a tight seal, silicone rubber cup washers are used. These are particularly useful in electronics and appliances to prevent water and dust ingress.


Nylon washers are used in applications requiring good insulation properties and resistance to wear from friction. They are common in consumer electronics and automotive industries where non-conductive and corrosion-resistant properties are needed.


Offering excellent thermal and electrical conductivity, copper washers are used in electrical applications, including in the manufacturing of circuit boards and electronic devices. They are also used in plumbing applications due to their malleability and corrosion resistance.


Brass cup washers are commonly used in electrical applications and decorative fixtures because of their natural corrosion resistance and aesthetic appeal. They are also a popular choice in the furniture industry for their vintage look.

The selection of the right material for cup washers in manufacturing often depends on factors such as strength, corrosion resistance, thermal conductivity, and aesthetic requirements. At Stephens Gaskets, we provide expert guidance on choosing the right material for your specific manufacturing needs, ensuring optimal performance and durability of your assemblies.

Need Guidance on Cup Washers?

Stephens Gaskets is a leading supplier of high-quality Cup Washers. With over 70 years of experience in the industry, we have a deep understanding of the needs of our customers. We commit ourselves to providing top-notch products and services for companies nation wide.

Get in touch with us today to learn more about our Cup Washers and how we can help you with your next project.

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