Menu Search

We found 37 product types for Nuts & Washers

Request a quote

For large volumes and customised products, add to your cart and click request a quote, orcontact usand we will respond within 1 working days.

Nuts & Washers

List Grid

Bonded Washers

Self-centring Bonded Washers are commonly used where hydraulic fluids and pneumatic oils are prevalent. They are an ideal option for maintenance, repair and operation applications.

Nitrile Washers are typically used with screws and bolts. The washer is made from steel and comes with a rubber O-ring seal that fits within the inside diameter of the washer. This washer and seal combination helps ensure a watertight assembly for your application.

Customers have the option to purchase a kit that contains a selection of size options that are suitable for BSP or Metric threads. This ensures quick and easy access to suitable sizes. Alternatively customers can purchase individual parts, in the thread type and specific size required.

  • Washer Material: Mild Steel
  • Seal Material: Nitrile NBR 80
  • Seal Colour: Black

Button Thread Nuts - Kwik Nut

These Button Thread Nuts - Kwik Nuts are designed to provide a secure and rapid fastening mechanism. Simply push down the thread length to the correct location and lock it in place with a 180 turn for press-fit installation.

It produces a more secure fastening by reducing the danger of nut back-off due to vibrations or dynamic loads. It also makes them particularly ideal for applications involving severe weights or high-pressure situations, assuring excellent performance and lifespan of the secured assembly. Used in applications such as electronics, automobiles, and heavy machinery.

  • Material: PA
  • Colour: Black
  • Material Flammability Standard: UL94 V-2


Series Code :SR2305

Cage Nuts

Cage Nuts can be applied to square holes, and are commonly found on mounting rails of equipment racks. They offer ideal protection for equipment from stripped threads, and provide handy mounting of server rack equipment.

The combination of a square hole and cage nut is used within rack systems, as this allows for a choice of nut and bolt sizes to be used. If threads are damaged, the metal nut can be easily repleased, as the sheet metal is too thin to tap or thread.

Our Cage Nut range comprises of Steel Cage Nuts that are natural in appearance. A great tool-free option available in M5, M6 and M8 thread sizes.

Dome Nuts - Metal

Dome nuts, also known as acorn nuts, are a type of nut that has a rounded, dome-shaped head. The dome nut's head protects the application's bolt or screw from damage and aids in the prevention of loosening. Additionally, they protect from exterior elements such as dust, debris, moisture, and corrosion.

Easy to install and remove by screwing it. This range offers some dome nuts with a silicone seal to offer greater seal and security to external factors. Commonly used in industrial, automotive, medical and food production applications.

  • Material: Stainless Steel, Mild Steel

Dome Nuts - Nylon

Dome Nuts, also known as Cap Nuts and Acorn Nuts, is a type of nut that has a domed end on one side. As such, a Dome Nut is ideal for covering and protecting a bolt or screw in a wide range of applications.

Made from Nylon 6/6, these Nylon Acorn Nuts not only protect the bold threads under the nut, but also provide a tidy appearance. A Cap Nut may also improve safey on some joints and applications. When an assembly needs a smooth finsih, or you wish to hide or disguise the fasteners and exposed threads of an application, Plastic Dome Nuts are the ideal solution.

  • Nut Shape: Hexagonal
  • Colours: Black and Natural
  • DIN 1587

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

Fixing Plates & Rings

The Quarter Turn lock range is supplied with a range of accessories including fixing rings. These are supplied in two different types; one in Spring Steel and the other in Die Cast Zinc. They are suitable for all locks with a 20.2 x 22.2 fixing hole.

Flange Hex Nut - Plastic

Flange nuts are hexagonal nuts with a wide flange that spreads the nut's load over a wider surface area. This makes them excellent for applications requiring a strong clamping force while avoiding damage to the mating surface.

Its hexagonal form provides numerous sides for a secure grip, making installation and removal with sockets or wrenches simple. The flange gives an additional layer of rigidity, preventing the nut from loosening owing to vibrations and torsion. Used in the automotive, manufacturing, and electrical industries.

  • Material: Nylon
  • Colour: Natural, White

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 - Metal

Flat Metal Washers, are a type of Plain Washer; they are commonly used in conjunction with screws, bolts or nuts. They offer spacing and load distribution, and are an important part of any fastener assembly. Flat washers are a popular type of washer that does not lock, but instead is applied to protect mating surfaces from damage.

Our range of metal flat washers comes in Mild and Stainless Steel, in both Flat and Countersunk variants. Matt and zinc plated finishes are available.

We have a wide range of Nuts to choose from, so why not browse our selection of Metal Standard Hex Nuts, Nyloc Nuts, Metal Lock & Flange Nuts or our Metal Wing Nuts to find the ideal partner to suit your application.

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.

Grommet Nuts

Grommet Nuts are used for a secure threaded connection between two panels and are often purchased alongside our U-Nut Grommets

Insulating Cup Washers

Round Cup Washers are ofter used for covering large holes, like pipe and tube ends. They are shaped like a cup or bowl and often have a flanged area beneath the head - useful for evenly distributing a load over a surface area.

It insulates the head of a metal screw from electrical currents or other conductive materials. It is resistant to corrosion, oil and other chemicals. It can be used with most screw head styles such as cheese, pan and fillister.

  • Material: Nylon
  • Colour: Natural

Integral Seal Bolts

Sealing bolts are a type of fastener designed with an o-ring to provide secure bi-directional protection against contaminates such as gases and fluids in various applications, minimising the risk of damage to sensitive equipment. They prevent the entry of water, dust, or other contaminants, ensuring a secure, reliable connection.

This range of sealing bolts with a hexagonal head, incorporates an O-ring which is compressed, squeezed into a precision groove machined under the head of the bolt, and the mating surface to complete the seal. They are manufactured from stainless steel, which provides good corrosion resistance and is slightly magnetic.

Integral Seal Bolts are used in threaded and non-threaded holes in applications such as pipes, valves or pumps. Sealing bolts are used in threaded and non-threaded holes in applications such as cabinets or used in the automotive and electric industries. Please note: Our seal bolts are designed for use in applications where sealing properties are required. It could be confused with standard fasteners, these do not require sealing properties and with an O-ring you will not get a sealing property like you get with seal screws and may damage the ring.

  • Designed with a sealing feature to provide a secure and watertight connection to various applications, minimising the risk of loosening due to vibration or movement.
  • Prevent the entry of water, dust, or other contaminants, ensuring a secure, reliable connection.
  • It has a hexagonal head and incorporates an O-ring which is compressed, squeezed between the head and the mating surface.
Material: 316 Stainless Steel, 303 Stainless Steel Series Code:

Integral Seal Domed Nuts

Integral Seal Nuts are a type of fastener with an integrated sealing feature, combining the functionality of a nut and a sealing component into a single unit. These nuts provide reliable protection while simplifying the assembly process and eliminating the need for additional sealing components. They prevent the entry of water, dust, or other contaminants providing bi-directional sealing.

This range of Integral Seal Domed nuts incorporates an O-ring which is compressed and squeezed between the nut and mating component.

They are suitable for temperatures from -100C to +260C and are reusable. Integral Seal Nuts are used in applications such as cabinets or used in the automotive, machinery and electric industries.

  • Integrated sealing feature, combining the functionality of a nut and a sealing component into a single unit.
  • Reliable and watertight connection while simplifying the assembly process and eliminating the need for additional sealing components.
  • Suitable for temperatures from -100C to +260C and are reusable.
Material: 316 Stainless Steel, 303 Stainless SteelColour: Material Flammability Standard:

Integral Seal Hex Nuts

Integral Seal Nuts are a type of fastener with an integrated sealing feature, combining the functionality of a nut and a sealing component into a single unit. These nuts provide reliable protection while simplifying the assembly process and eliminating the need for additional sealing components. They prevent the entry of water, dust, or other contaminants providing bi-directional sealing.

This range of Integral Seal hexagonal nuts incorporates an O-ring which is compressed and squeezed between the nut and mating component.

They are suitable for temperatures from -100C to +260C and are reusable. Integral Seal Nuts are used in applications such as cabinets or used in the automotive, machinery and electric industries.

  • It provides a reliable and watertight connection while simplifying the assembly process and eliminating the need for additional sealing components.
  • It incorporates an O-ring which is compressed and squeezed between the nut and the mating surface.
  • Suitable for temperatures from -100C to +260C and are reusable.
Material: 316 Stainless Steel, 303 Stainless Steel Series Code:

Knurled Thumb Nuts - Cone / Plastic

These knurled nuts have a conical design. They feature a knurled outer surface that ensures a secure grip, allowing them to be tightened and loosened quickly and easily without the use of tools. In addition, the textured pattern improves grip, eliminates slippage and ensures a solid hold.

The tapered design also provides greater pressure distribution, resulting in a more even and secure tightening. Its plastic material allows it to withstand repeated use exposed to various weather conditions and resist corrosion or rust. Common applications include electronics, automotive, industrial machinery and switchboards.

  • Material: Nylon
  • Colour: Natural

Knurled Thumb Nuts - Round/Plastic

Thumb Nuts, also known as Knurled Nuts, are a type of nut with a knurled outside diameter (surface). This design facilitates manual tightening by hand, and also secures the nut into a handle or cover.

Our knurled thumb nut offer features plastic thumb nuts made from Nylon 6/6; a strong, tough and durable material that is ideal for connecting elements and other technical components. It has self-lubricating properties, and is resistant to moisture, vapour and salt water. Operational temperatures can go up to 100 to 120C, temporarily for non-critical parts. Many nylons are self-extinguishing.

Our nylon thumb nut range also includes options made from Nylon with 30% glass fibre compound. This option is resistant to numerous fluids and chemicals, and is ideal for technical products requiring high dimensional stability and durability at higher operating temperatures. It has good strength and stiffness, in combination with good impact qualities. Excellent for heavy duty handles.

We also offer natural Polycarbonate (PC) plastic knurled thumb nuts. The strong PC material provides an aesthetically pleasing joining solution for applications in Retail and Point of Sale, for example.

  • Quick and easy
  • Tool-free installation and removal
  • Colours: Black, White and Natural.

Lock & Flange Nuts - Metal

A Flange Nut is a type of nut that has a wide flange on one side, which acts as an integrated washer. The washer element helps to evenly distribute the pressure of the nut over the application being secured, thus mitigating the likelihood of damage or the chance of loosening, as a result of an uneven surface.

Our metal nuts offer includes a Flange Metal Lock Nut made from Mild Steel. The Steel Flange Nut has a Zinc finish, and features a notched base for broad support. These flange nuts are sure to limit loosening in an array of applications.

  • Threads include; M3, M4, M5 and M6
  • According to DIN 6923, ISO 4161.

Lock & Seal washers

Lock and seal nuts and bolts in position.

Lock Nuts - Slip-On

These Slip-On Lock Nuts are designed for speedy assembly and tight fixing, preventing screws or bolts from spinning, sliding, or coming free. It eliminates the need for time-consuming winding and unwinding on lengthy threads and the risk of breaking the threads.

It is zinc plated for corrosion resistance and may be slipped over broken or bent studding up to a 20-degree angle. It is suitable for use outside and is both maintenance-free and reusable. It assembles and disassembles 50% faster, saving time and effort in usage.

Simple to install in confined locations and does not require a specialised spanner. Simply open the lock nut, position it as desired, and then tighten it with a spanner. In addition, it can withstand temperatures of up to +150C. Commonly used in construction, scaffolding, automotive, and mechanical applications.

  • It may be slipped over broken or bent studding up to a 20-degree angle.
  • It is reusable and assembles and disassembles 50% faster, saving time and effort in usage.
  • It can withstand temperatures of up to +150C.
Material: Steel

Nyloc Nuts

Nyloc Nuts are an economical locking nut that are an ideal choice for applications effected by vibration or movement, which can cause the nut assembly to come loose or undo all-together. Our Nyloc Nut range is available Mild Steel with a Zinc Plating.

Mild Steel (or Automat Steel) is often used in applications where a high mechanical strength is needed. It is a suitable alternative to Brass, when conductivity is not a critical element. The Zinc plating provides a professional finish that's RoHS compliant.

  • Thread Sizes: M3, M4, M5 and M6
  • Nut Shape: Hexagonal with a Flange
  • Ratings: DIN 985 ISO 10511

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

  • of 2