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Plastic Washers

 (9 product groups)

What are plastic washers used for?

Plastic washers are used for a variety of applications such as providing a watertight seal, minimizing vibrations, standing up to high electrical requirements, and evenly distributing the load or force of a bolt or screw. One of the most common uses of plastic washers is in electrical and mechanical applications where insulation and resistance to melting, corrosion, and chemicals are required.

Additionally, plastic washers are often used in applications where non-metallic washers are needed to reduce noise and shock or prevent leaks and damage to surfaces.

Types of Plastic Washers

The specific type of plastic washer will depend on the application's requirements, such as strength, insulation, corrosion resistance, heat or chemical resistance, or aesthetics.

Choose from washers such as nylon washers, PVC washers, POM washers and polyamide washers.

Head over to our Knowledge Centre for a huge range of guides about washers including: 

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Finishing Washers

Finishing Washers provide protection for cabinets and other applications from scratching and other damage that may occur. They also provide cover for misaligned holes that means the finished appearance of your assembly will be neat and tidy.

This high quality finish is couple with good thermal and electrical insulation properties. These washers are versatile and can also be used as glides, bumpers, feet and spacers.

  • Material: Nylon 6/6
  • Colours: Black, Natural and White
  • UL94 V2 Flame Rated


Series Code :SR1946

Flare Washers

Flare Washers are an ideal solution for retaining light weight constructions. They can also be used as a slide washer on rotation centres. The plastic material used to make these washers can be sterilised, which makes them an ideal solution for scientific and medical applications.

No special tools are required for assembly or dismantling of the washers. They are quick and easy to apply.

  • Material: Polyoxymethylene (POM)
  • Colour: Natural

Flat Washers - Plastic

Flat Washers made from a variety of plastics. Also known as plain washers, these flat plastic washers are among the most commonly used. The plastic washer helps evenly distribute the load of a fastener, such as a nut, whilst helping to reduce heat and friction during the process of tightening.

Our wide range features a vast array of sizes, including large diameter plastic washers that are suitable for a number of metric threads. We also offer a choice of materials, including Nylon washers and other plastic washers made from Polycarbonate (PC), Polypropylene (PP) and Polyoxymethylene (POM). As well as high-quality, hard plastic washers like Polyether Ether Ketone (PEEK). All with a durable, smooth finish.

  • Insulates against moisture and electricity
  • Resistant to corrosion, abrasion and most chemicals
  • Provides full insulation, cushioning and spacing
  • Colours: Natural, Black and Brown.

Flat Washers - Rubber

Rubber Washers for sale at Essentra Components. Designed for use with screws, bolts and nuts - flat washers rubber are an essential component in any fastener assembly. Also known as plain washers, they are the most commonly used washer type. Flat washers do not have a locking function, but instead are applied as protection for mating surfaces, from damage. Our rubber washers, which are often used by manufactures for spacing, buffing, sealing and for locking purposes, provide ideal support to threaded fasteners, particularly in the construction industry. These durable flat rubber washers have excellent anti-vibration and shock absorbing properties, whilst also helping to seal fluids and other liquid connections - and offer superior insulation, particularly within electronic assemblies.

The range includes a Thermoplastic Rubber Washer (TPR) that has improved chemical resistance, sealing characteristics and vibration resistance. These are a great solution for oil, gas and automotive industries. These flat rubbers are manufactured to DIN 125 standard. They also benefit from flame resistance to UL94 HB standard.

We also offer a flat washer made from Polyvinyl Chloride (PVC), which has high stiffness and fantastic electrical properties - making it ideal for use in a range of electrical assembly applications. This PVC washer provides abrasion and moisture resistance.

  • Smooth, black finish
  • Rubber washer sizes include, but are not limited to; M8 rubber washers.

Lock & Seal washers

Lock and seal nuts and bolts in position.

Retaining Rings

Retaining Rings act like a shoulder, which holds components and assemblies in place on a smooth shaft and can also be used in a housing or bore for one-time uses. Popular applications include retaining shafts.

They are installed into pre-manufactured grooves on axles and pins, creating a shoulder function and retaining the specified component or assembly. The ring design features a lip for easy assembly and dismantling.

  • Material: Polyoxymethylene (POM)
  • Colour: Black

Retaining Washers

A Plastic Retaining Washer is primarily used to hold screws and bolts in place during assembly and have a design that grips the outside of screw or bolt shank. Also known as an Anti Loss Washer, they provide insulation, cushioning and spacing. They help insulate fastening assemblies from moisture and electricity.

This washer range includes options with internal and external teeth with a tapered design. The washer easily slides on to the screw (or bolt) and is retained by the screw once assembled. The washer cold forms and fully enters the pitch of the screw to provide sealing.

These washers allow for preliminary mounting of the screw (or bolt) before securing with a nut. They are ideal when pre-assembly of the screw and washer is required. They also help reduce assembly time and cost.

The range includes material options that provide corrosion, abrasion and chemical resistance.

  • Materials: Polycarbonate (PC), Polyamide 6.6 (PA) and High Density Polyethylene (HDPE)
  • Colour: Natural

Saddle Washers - Nylon

Our Plastic Saddle Washers range consists of Nylon Saddle Washers.

This includes Saddle Washers suitable for the assembly of crossed round tubes. Saddle Connectors that fits to the top of a connector to attach a horizontal tube, and is suitable for the M8 range of Expander Connectors (sold separately). Additionally included are Saddle Tube Connectors, for which a solid T connection is created using an M6 Screw; they are suitable for furniture, constructions, stand builders and machinery.

A Saddle Washer is designed to accommodate pipes and tubes. They provide support to the pipe assembly during installation and application. Our Pipe Saddle Washers range is available in a choice of black and white. The Nylon 6/6 material will not cause damage to painted surfaces.

Shoulder Washers

Shoulder Washers, also known as Insulation Sleeves or Shoulder Bushes, are designed to provide electric and heat insulation for assemblies where this is a fundamental requirement. A type of stepped washer, they are made from a variety of materials and colours, these products are self lubrication, corrosion and abrasion resistant.

The step washer offering features shoulder bushes made from Nylon 6/6, These nylon sleeve washers are a self-lubricating option, great for anything that pivots or rotates. The are low coefficient of friction, and resistant of moisture, dirt and most chemicals. We also have a countersunk sleeve that is frequently applied in electro technical environments, and is compulsory by law in many countries. It prevents electrical corrosion with countersunk head screws.

Perhaps our wide selection of Insulation Sleeves is more suitable for your project needs? Made from a choice of natural Nylon 6 or black Nylon with a glass-fibre compound; these sleeves prevent contact with conducting materials, prevent parts from vibrating loose, and accurately locate and space assemblies.

Our nylon shouldered washers range extends with a selection of Locking and Sealing Washers. Locking and sealing types are sold separately. Screw Insulators available in a range of sizes, as well as high temperature options. The high temperature insulators also have options made from Polyphenylene Sulfide (PPS). Or just keep it simple and browse our wide range of shoulder washer and insulating washers, that have flame resistance to a UL94 V2 standard.