Plastic Washers – Ideal for Industrial Applications
Plastic washers are available in a wide range of materials and sizes, making it easy to select the right solution for virtually any industrial application. Our range includes high-quality nylon washers as well as washers made from other engineering plastics. Choosing the appropriate material and washer design is essential to ensure reliable performance, long service life and optimum functionality.
The Bülte range includes both standard plastic washers, based on common DIN and ISO standards, and specialist washers such as sealing washers, insulating washers, thick washers, locking and retaining washers, as well as self-adhesive washers.
Our range includes nylon washers, PP washers, PE washers, POM washers, PTFE washers, PVDF washers, PEEK washers, PVC washers and other engineering plastic washers designed to meet demanding mechanical, thermal and chemical requirements.
Beyond Nylon: Materials for Plastic Washers
The properties of plastic washers are largely determined by the material used. Depending on the application, a wide range of engineering plastics is available, including nylon (PA), PEEK, PTFE, POM, PP, PE, PVC and PVDF, each offering specific advantages in terms of mechanical strength, dimensional stability and electrical insulation as well as resistance to chemicals and high or low temperatures.
Nylon Washers (Polyamide/PA)
Nylon washers are among the most widely used plastic washers and are valued for their high strength, toughness and excellent wear resistance. They are suitable for a wide range of applications in mechanical engineering, equipment manufacturing and electrical engineering. Almost all plastic washers from Bülte are available in nylon (PA).
PTFE Washers (Teflon™)
PTFE washers provide outstanding resistance to aggressive chemicals and excellent low-friction properties. They are the ideal choice for applications in the chemical industry and corrosive environments. Our standard range includes white PTFE washers similar to DIN 125 (ISO 7089), DIN 433 (ISO 7093) and DIN 9021 (ISO 7093), as well as additional plain plastic washers with diameters from 1.1 to 56.2 mm, spacer washers and PTFE sealing washers. Other versions are available on request.
PVC Washers (Rigid & Flexible)
PVC washers made from rigid PVC (white) and flexible PVC (natural) offer a good combination of chemical resistance, electrical insulation and cost-effectiveness. While rigid PVC provides high stiffness, flexible PVC is particularly suitable for applications requiring sealing or vibration damping. The Bülte online catalogue includes PVC washers similar to DIN 125 (ISO 7089) (rigid and flexible PVC) and DIN 9021 (ISO 7093) (flexible PVC); other washer types are available on request.
PEEK Washers
PEEK washers are designed for demanding applications requiring exceptional temperature resistance, high mechanical strength and outstanding chemical resistance. This high-performance polymer offers excellent dimensional stability, low creep and outstanding long-term performance, making it ideal for use in the aerospace, medical, electronics, mechanical and plant engineering industries. The Bülte standard range includes PEEK washers similar to DIN 125 (ISO 7089) and DIN 9021 (ISO 7093); other types are available on request.
Polyethylene Washers (PE)
Washers made from polyethylene (PE) offer excellent chemical resistance, low weight and a cost-effective solution for many applications. They are particularly suitable for applications with moderate mechanical loads. Our standard range includes PE washers similar to DIN 125 (ISO 7089), sealing washers, and retaining washers made from polyethylene, as well as coloured washers in red, yello or blue. Other types and colours are available on request.
Polypropylene Washers (PP)
Polypropylene washers offer excellent resistance to a wide range of chemicals and feature very low moisture absorption. They are commonly used in the chemical, environmental and process industries. The Bülte standard range includes PP washers similar to DIN 125 (ISO 7089) and DIN 9021 (ISO 7093); other washer types are available on request.
Polyacetyl Washers (POM)
POM washers offer excellent dimensional stability, high stiffness and low friction. They are primarily used in precision applications and technical assemblies. Our standard range includes POM washers similar to DIN 125 (ISO 7089); other types are available on request.
PVDF Washers
PVDF washers combine outstanding chemical resistance with excellent mechanical properties and high purity. They are widely used in demanding industrial and process applications. Our standard range includes PVDF washers similar to DIN 125 (ISO 7089); other washer types are available on request.
Glass-Fibre Reinforced Nylon Washers (PA-GF)
Glass-fibre reinforced nylon washers offer greater stiffness, strength and dimensional stability than standard nylon washers. They are particularly suitable for demanding mechanical applications in machinery, equipment and automotive engineering where high loads and reliable force transmission are required. Bülte offers PA-GF30 washers (nylon +30% glass fibre) similar to DIN 125 (ISO 7089) in natural and black, as well as DIN 9021 (ISO 7093) in natural PA-GF.
Hard Paper Washers
Brown hard paper washers are characterised by their high compressive strength and excellent electrical insulation properties. They are widely used in equipment manufacturing, electrical engineering and other applications requiring reliable electrical insulation and high dimensional stability. The Bülte standard range includes hard paper washers similar to DIN 125 (ISO 7089) and DIN 433 (ISO 7092); other washer types are available on request.
Pressboard Washers
Pressboard washers offer good electrical insulation properties and are suitable for a wide range of electrical applications. They are commonly used as a cost-effective solution for electrically insulating components and protecting sensitive surfaces. The Bülte standard range includes pressboard washers similar to DIN 125 (ISO 7089) and DIN 433 (ISO 7092); other types are available on request.
Neoprene, Silicone, NBR and Other Elastomers
For applications requiring reliable sealing, vibration damping or compensation of surface irregularities, Bülte also offers a comprehensive range of o-rings made from NBR or sealing washers made from neoprene, silicone and other elastomer materials. These washers are available in a wide variety of dimensions and material grades for industrial applications.
Plastic Washer Norms, Types, Sizes and Material at a Glance
The table below provides an overview of the Bülte standard range of plastic washers. If the washer you are looking for is not available in the size you require, please contact us! We are also happy to supply washers made from other plastics on request.
| Norm/Type | Size | Available Plastic |
|---|---|---|
| Flat Plastic Washers | Inner Ø 1.1 to 56.2 mm Outer Ø 2.5 to 70.0 mm |
Nylon (PA), PA 6.6, PTFE (others on request) Coloured washers (red, yellow, blue) |
| Washers ~ DIN 125 / DIN 34815 / ISO 7089 | M1.6 -M90 | Nylon (PA), PA 6.6, PA+GF, PC, PE-HD, POM, PP, PTFE, PVDF, PEEK Pressboard, Hard Paper, Rigid PVC, Soft PVC, Silicone |
| Washers ~ DIN 433 / ISO 7092 | M2 - M36 | Nylon (PA), PTFE, Pressboard, Hard Paper (others on request) |
| Square Washers ~ DIN 436 | M10 - M24 | Nylon (PA) (others on request) |
| Washers ~ DIN 440 (Form R) | M5 - M12 | Nylon (PA) (others on request) |
| Washers ~ DIN 1440 | M3 - M16 | Nylon (PA) (others on request) |
| Washers ~ DIN 6902 | M2.5 - M10 | Nylon (PA) (others on request) |
| Washers ~ DIN 9021 / ISO 7093-1 | M2 - M20 | Nylon (PA), PA+GF, PP, PTFE, PEEK, Soft PVC (others on request) |
| Washers NFE 25-513-MU | M2.5 - M20 | Nylon (PA) (others on request) |
| Washers NFE 25-513-ZU | M2.5 - M6 | Nylon (PA) (others on request) |
| Self-Adhesive Washers ~ DIN 125, DIN 433, DIN 9021 | M2 - M20 | Nylon (PA) (others on request) |
Benefits of Plastic Washers at a Glance
Plastic washers and nylon washers offer many advantages over metal washers, including lower weight, excellent corrosion resistance and effective vibration damping. They are also a cost-effective solution for applications requiring electrical insulation, high chemical resistance and reliable long-term performance in demanding industrial environments.
Corrosion-Resistant and Rust-Free
Plastic washers are permanently corrosion-resistant and ideal for applications in humid environments as well as outdoor use. Unlike metal washers, they do not rust, helping to reduce maintenance requirements and minimise the risk of component failure.
Excellent Electrical Insulation
Thanks to their non-conductive properties, plastic washers and nylon washers are ideal for applications in electrical engineering, electronics, control cabinets and equipment manufacturing. They are used to electrically isolate components and prevent unwanted current transfer.
Lightweight
Plastic washers are significantly lighter than metal washers. This makes them an excellent choice for weight-sensitive applications, particularly in the automotive, equipment manufacturing and aerospace industries, where reducing overall weight is an important design consideration.
Excellent Chemical Resistance
Depending on the material, plastic washers washers offer excellent resistance to acids, alkalis, solvents and many other chemicals. Materials such as PP, PTFE, PVDF and PEEK are therefore widely used in the chemical, environmental and process industries.
Protects Sensitive Surfaces
Plastic washers and nylon washers help protect sensitive surfaces from scratches, indentation marks and other damage. This is particularly important for coated or painted surfaces. On softer materials, they also help prevent the washer or fastener from sinking into the surface.
Vibration and Noise Damping
Many engineering plastics provide excellent damping properties, helping to reduce vibration and noise. As a result, plastic washers and nylon washers contribute to the long-term reliability of bolted assemblies, particularly in applications involving moving parts or continuous vibration.
Plastic Washers or Metal Washers?
Both plastic washers and metal washers offer specific advantages. While metal washers are generally preferred for applications involving high mechanical loads and elevated temperatures, plastic washers and nylon washers provide significant benefits in terms of corrosion resistance, electrical insulation and weight reduction. The most suitable washer material should therefore always be selected according to the requirements of the intended application.
Plastic washers are widely used in electrical engineering, equipment manufacturing, the chemical and process industries, as well as in applications where corrosion resistance, electrical insulation or low weight are essential.
| Property | Plastic Washers | Metal Washers |
|---|---|---|
| Corrosion Resistance | ✓ | Limited |
| Electrical Insulation | ✓ | ✗ |
| Weight | ✓ | ✗ |
| Chemical Resistance | ✓ | Material-dependent |
| Temperature Resistance | Limited | ✓ |
Bespoke Plastic Washers
Custom-manufactured to your drawings, samples or specifications
Standard plastic washers are not always the ideal solution for every application. Where specific dimensions, materials or functional requirements are needed, custom plastic washers are often the most economical and technically effective choice. Bülte develops and manufactures custom plastic and nylon washers to customer drawings, samples or specifications, precisely tailored to your application.
With customised inside and outside diameters, material thicknesses and geometries, custom plastic washers can be precisely tailored to specific installation requirements. Special shapes, cut-outs and customised profiles can also be manufactured whenever standard washer dimensions are not suitable.
In addition to custom dimensions, Bülte offers a wide choice of materials to meet demanding mechanical, thermal and chemical requirements. Depending on the application, materials such as nylon, PP, PE (HDPE), POM, PTFE, PVDF and PEEK are available. This allows properties such as electrical insulation, chemical resistance, temperature resistance and mechanical strength to be optimised for each application.
Custom colours based on the RAL colour chart are also available. Coloured plastic washers simplify component identification, support assembly processes and make it easy to distinguish between different versions.
From prototypes and small production runs to high-volume manufacturing, Bülte supports projects across a wide range of industries. Our experts assist you from the early design stage, helping you select the most suitable material and optimise your washer design.
Get in touch with us! We will be pleased to advise you on custom plastic and nylon washers and work with you to develop the ideal solution for your application.
Frequently Asked Questions about Plastic & Nylon Washers
What types of plastic washers are available?
The Bülte range includes standard plastic washers, sealing and locking washers, insulating washers and spacers, cup washers, square washers and self-adhesive washers. These plastic and nylon washers are available in a wide range of materials and sizes to suit different industrial applications.
What are the advantages of plastic washers over metal washers?
Plastic washers including nylon washers are corrosion-resistant, electrically insulating and significantly lighter than metal washers. They also protect sensitive surfaces and, depending on the material, offer excellent chemical resistance.
Are custom plastic washers available?
Yes. Bülte manufactures custom plastic washers to customer drawings or samples with individual dimensions, materials and colours. Custom solutions are available for prototypes, small production runs and high-volume manufacturing.
Which plastic washer materials offer the best chemical resistance?
For chemically demanding applications, PP washers, PE washers (HDPE), PTFE washers, PVDF washers and PEEK washers are particularly suitable. The most appropriate material should always be selected according to the chemicals involved and the operating conditions.
Can plastic washers provide electrical insulation?
Yes. Plastic washers offer excellent electrical insulation and are widely used in electrical engineering, electronics, control cabinets and equipment manufacturing.
Which plastic washers are suitable for high-temperature applications?
PEEK washers, PTFE washers and other high-performance plastic washers are ideal for applications involving elevated temperatures. These materials retain their properties even under demanding thermal conditions.
Are self-adhesive plastic washers available?
Yes. Self-adhesive washers made of nylon or another plastic simplify installation in hard-to-reach areas and overhead applications. They are available in a wide range of sizes and designs.