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Threaded Shoulder Washers

 (60 product groups)

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Push-In Plugs

Push-in Plugs are a practical choice for blanking a wide range of holes or bores during manufacturing processes or transportation, and can be applied to finished products. Designed to shield the handler from rough surfaces caused by sharply cut hole edges. The varied styles available in our range can also be used to protect against ingress of contaminants.

They are simple to install and uninstall with a single push. Used in various applications, including medical, automotive, food and beverage, and industrial machinery.

Protects against damage, dirt, moisture, and corrosion.

  • Shields the handler from rough surfaces caused by sharply cut hole edges.
  • Used in various applications, including medical, automotive, food and beverage, and industrial machinery.
  • Protects against damage, dirt, moisture, and corrosion.
Material: LDPE Colour: Natural, Black, White Series Code: SR1011

Quick Fit Connector Caps

Quick Fit Connector Caps are designed for easy and secure connections to connectors, fittings, and ports.

Provides reliable protection against contamination, moisture, and physical damage. Their reusability and durability make them a cost-effective option for both temporary and long-term protection.

Used in a variety of sectors, including automobiles, manufacturing, and hydraulics.

  • Flexible and ergonomic design ensures a snug fit.
  • Simple installation and removal, without the need for tools or complicated processes.
  • Resistant to impacts, chemicals, and temperature fluctuations.
  • They can be reused.
Material: LDPE Colour: Yellow Series Code: SRQCF

Quick Tightening Knurled Knobs

Quick Tightening Knurled Knobs features a knurled surface that allows for a better grip and easier turning. It can be quickly tightened or loosened using only your fingers without requiring additional tools by only a slight clamping force. This can save time and effort in situations where changes are required regularly.

The knob is inserted obliquely on the threaded stud and then placed in the axial position to fit onto the stud threads. At this point, it can be locked with a small rotation.

These are widely utilised in a variety of industrial applications, including in automotive, aerospace, and medical equipment.

  • The knob is inserted obliquely on the threaded stud and then placed in the axial position to fit onto the stud threads.
  • Widely utilised in a variety of industrial applications, including in automotive, aerospace, and medical equipment
Material: Steel Series Code: SR37360

Quick-Fit Connector Plugs

Quick-fit Connector Plugs are created to conform to SAE J2044 - 12 connectors for fuel systems. The plug offers protection from ingress of contaminants or potential leaks of fluid.

The ring tab is designed to cover the wall of the connector when fitted, and to be pulled out for easy and fast removal.

  • Ring tab is designed to cover the wall of the connector when fitted.
  • Helps quickly and easily connect wires, without needing special tools or equipment.
  • Used in industrial, HVAC, and plumbing applications.
Material: LDPE Colour: Yellow Series Code: SRF0009

Rectangular Threaded Inserts & Glides

Rectangular Threaded Inserts are ideal for use with adjustable feet, tilt glides, and castors. Available in all-metal options or plastic inserts that feature a metal nut.

  • Threaded Inserts and Glides come in a variety of otptions. Inserts are placed into the cavity at the end of pipes and tubes to provide a clean and neat finished appearance.
  • Offers surface protection, and prevents the ingress of dirt and other contaminants.
  • Suitable for standard or heavy duty applications.
Material: HDPE, HDPE;Steel, PA, Aluminium, PE-HD Colour: Black, Grey, Natural Series Code: SR1570, SR1571, SR1567

Round Threaded Inserts

Round Threaded Inserts are quick-fit inserts for tube ends and connecting pipes, designed for secure screw fixing. Provides a stable and secure mounting point for various furniture and equipment components.

  • It is available as quick-fit inserts.
  • Ideal for tube ends and connecting pipes.
  • Used in manufacturing, packaging, and construction industries.
Material: Steel, HDPE, LDPE, PA6, PP, PA, Aluminium Colour: Natural, Black Series Code: SR1430, SR1570, SR1567

Round Threaded Inserts - Metal

Round Threaded Inserts feature an internal thread for adjustable levelling feet and brackets. Their metal threads ensure a smooth, secure and durable fit, with two-piece mouldings that fit snugly into tubes.

  • Their metal threads allow for a smooth, secure, and durable fit, and the two-piece mouldings fit snugly into the tubes.
  • Have an internal thread to accommodate adjustable levelling feet and brackets.
  • They are ideal for heavy duty applications and made from cast aluminium alloy.
Material: HDPE, PA Colour: Black, Grey Series Code: SR1571, SR5438

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.

Side Pull Plugs

Side Pull Plugs are a type of plug that features an intergral side pull tab, and is designed for easy removal in awkward locations. Designed to protect threaded or non-threaded holes during production, storage, and transportation. Offers protection against dust, dirt, damage, moisture, acid, and corrosion.

The side pull tab is designed for quick and easy removal, and provides additional help when removing the part from a tightly fitted application. It can withstand temperatures from -40F to 275F (-40C to 135C).

Used in various applications, including machinery, electronics, automotive, and HVAC systems.

  • Protects against dust, dirt, damage, moisture, acid, and corrosion.
  • Withstands temperatures from -40F to 275F (-40C to 135C).
  • Tapered design allows the part to plug multiple inner diameters.
Material: LDPE, TPE Colour: Yellow, Natural, Blue Series Code: SRSTCL2, SR1053, SR1110

Slottex Plugs

Slotted Plugs are designed with a double sealing ring on the underside of the flange that provides a secure and reliable seal. The design includes five complete threads for a secure fit. Offers protection from dirt, dust, debris, liquid residue and corrision. Head designed not to trap liquid when the plug is secured in place.

These Sealing Plugs are easy to install and remove by hand. The hex head design allows the plug to be applied or removed with a screwdriver, spanner, Allen key or socket. The range covers an extensive offering of dimensions suitable for Metric, BSP, and UNF threads.

Used in various applications, including hydraulic, pneumatic, and general engineering industries.

  • Designed with a double sealing ring for a secure and reliable seal.Designed with a double sealing ring for a secure and reliable seal.
  • Protects from contaminants and ingress of moisture.
  • Easy to install and remove by hand.
  • SRF1007, SRF1005, SRF1117
Material: LDPE, PA, PE Colour: Yellow, Blue Series Code: SR1005, SR1007, SR1117

Snap Fit Plugs

These Snap Fit Plugs are designed to facilitate the application and removal on a component. They protect the aperture from ingress of contaminants like dirt, dust, and debris.

Easy to install and remove; once pushed into position, a single twist provides a secure and snug fit. A central tab at the top provides a strong grip for tightening and removal. The range is suitable for hydraulic fittings with Metric, BSP, UNF, and JIC threads.

Each plug covers a range of different thread sizes and styles.

  • Easy to install and remove. Once pushed into position, a single twist provides a secure and snug fit.
  • Features a central tab at the top that provides a strong grip for tightening and removal.
  • Suitable for Metric, BSP, and UNF threads.
Material: LDPE Colour: Red, Yellow, Blue Series Code: SR1008, SRTFUP, SR1119, SR1010

Soft Knurled Caps

Soft Knurled Caps are a simple and economical way of protecting metric and UNF threads during painting, assembly or transportation. They have a knurled exterior and are manufacured from a soft, durable TPE that provides a better grip and a tight fit. Protects pipe ends from damage, and keeps dirt and debris out.

Easy to install and remove. They can operate in a temperature from -60 C up to 135 C.

Commonly used in plumbing, HVAC, and industrial applications.

  • Simple and economical way of protecting metric and UNF threads.
  • Easy to install and remove.
  • Operatures in temperatures from mimimum -60 C up to maximum 135 C.
Material: TPE Colour: Blue Series Code: SRF0010

Square Tube Inserts

Square Tube Inserts provide a finished look and offer protection to the end of square tubing, poles and posts. Two designs available; ribbed for maximum grip that can be used on multiple tube guages or with a plain shank that fits one tube guage specifically, giving you a step lead for easy installation.

Designed to provide a tight fitting connection on a variety of tubular products. Some of the range help prevent against damage to floors or other surfaces, as well as tube protection from external elements.

They come in a variety of options and styles; standard square ribbed inserts, lightweight square inserts, and metallic square inserts. Typically used in furniture and industrial equipment applications. The versatility of materials, finishes and colours provides a choice to maximize the aesthetical appearance and premium fit for your application.

  • Finishing product used for square tubular products.
  • Ideal for use on furniture and industrial equipment.
  • Helps prevent damage to floors and protect the tube from external elements.
Material: ABS, LDPE, PE, TPR Colour: Silver, Black, White, Mid Grey, Blue, Red, Yellow, Brown, Green, Dark Grey, Grey Series Code: SR5722, SRANQ, SR1540, SR1542

Stud Protection Caps

Stud Protection Caps are used to protect BSP and UNF threads. Designed with a small flange to allow the operator to tighten it with a socket spanner without having to remove the cap.

It increases protection against contaminants and limits wasted time during repetitive operations. It also allow economical handling.

  • Material: Polyethylene (PE)
  • Colour: Natural

T-Handle Knobs

T-Handle Knobs have metal inserts or studs that thread easily and create an easy to grip knob with an ergonomic design. The T-Handle design provides a strong hand hold for quickly adjusting controls or as a lever.

Series Code :SR6540

Tapered Caps & Plugs - Standard

Standard Tapered Caps and Plugs are versatile components designed for use as a plug or a cap. The tapered profile allows the part to plug multiple inner diameters or to cap multiple outer diameters.

These dual function plugs or caps are typically used to protect against damage, dirt, moisture, and other corrision during storage and shipping.

With a straight forward push fit design, these dual function components are easy to insall and remove. The extensive range offers a varied selection of sizes that range from 2.9 mm up to 345.0 mm.

  • Plug design suitable for multiple inside and outside diameters.
  • Protects threaded and non-threaded pipes, ports, and access points against damage, dirt, moisture, debris, and corrosion.
  • Suitable for use in hydraulic systems, automotive components or medical industries.
Material: LDPE Colour: Red, Blue, Black, Clear, Yellow Series Code: SR1000, SR1111, SRF0020

Tapered Caps & Plugs - Wide Flange

Wide Flange Tapered Caps and Plugs offers additional protection to the surrounding area on the bearing surface. The wider flange keeps the part from being accidently pushed down through the mating part. Designed to be used as a plug or a cap. The tapered profile allows the part to plug muliple inner diameters or cap multiple outside diameters.

These dual function components are typically used to protect against damage, dirt, moisture, and other corrision during storage and shipping.

Featureing a straight forward push-fit design, they are easy to insall and remove.

  • Prevents the plug from being accidentally pushed down through the contact piece.
  • Protects threaded and non-threaded pipes, ports, and access points against damage, dirt, moisture, debris, and corrosion.
  • Suitable for use in hydraulic systems, automotive components, chemical or medical industries.
Material: LDPE Colour: Red, Blue, Yellow Series Code: SR1001, SR1115, SRF0030

Threaded O-ring Plugs

Threaded O-ring Plugs for BSP/Gas Threads include a compressed flange lip and an O-ring to provide a watertight seal and superior leakage prevention for hydraulic threads. The threaded O-ring keeps contaminants like dirt, dust, debris, and moisture out of the hole.

It may be installed using a spanner, screwdriver, or by hand. BSP Gas threads are available. Used in oil and gas, plumbing, and automotive sectors where leak-proof seals are crucial to system integrity.

  • Material: HDPE
  • Colour: Yellow
  • Material Flammability Standard: UL94 V-2

Threaded O-ring Plugs - Metric Threads

Threaded O-ring Plugs for metric threads include a compressed flange lip and an O-ring to provide a watertight seal, for a superior leakage prevention, for hydraulic threaded fittings. Provides a tight seal and therfore prevents contaminant ingress from dirt, dust, debris, and moisture out of the aperture.

Can be installed using a spanner, screwdriver or by hand. Metric threads are available, with a cylindrical inner and outer diameter precise in millimetres. The fine taper of metric tapered thread allows for the best possible force transmission.Commonly used on hydraulic fittings, oil and gas, plumbing, and automotive sectors where leak-proof seals are crucial to system integrity.

  • Keeps contaminants like dirt, dust, debris, and moisture out of the hole.
  • Metric threads are available with a cylindrical inner and outer diameter precise in millimetres.
  • Used in oil and gas, plumbing, and automotive sectors.
Series Code:

Threaded Plugs with Gasket

Threaded Plugs with Gaskets are intended to establish a tight and secure seal that prevents dust, dirt, or other undesired components from entering. The inclusion of a gasket (washer) seal improves sealing capabilities, adding an extra layer of protection against leaks and impurities.

Threaded Plugs are easy to install and remove from the application using a straight screwdriver, hex key or wrench. They can withstand temperatures from -30C up to +90C.

Frequently used in hydraulic and pneumatic systems, automotive, and general engineering sectors.

  • Provides a tight seal, preventing contaminants from entering.
  • Easy to install and remove using a straight screwdriver, hex key or wrench.
  • Can withstand temperatures from -30C up to +90C.
Material: LDPE, PA6, PA;TPE Colour: Red, Yellow, White Series Code: SRTFUGP, SRTFTG, SRF0012

Threaded Protection Caps

Threaded Protection Caps are designed for use with BSP and Gas Threads. Protects threads and fittings from damage during manufacturing, storage and transportation. The knurled head shape allows for easy installation and removal by hand, by simply twisting them on to the pipe or tube.

  • Features a knurled head design that makes them easy to install and remove by hand by twisting them onto the pipe or tube.
  • The protection cap keeps contaminants like dirt, dust, debris, and moisture out of the hole.
  • Used in various applications, including hydraulic and pneumatic systems, automotive, and industrial applications.
Material: LDPE, HDPE, Nylon Colour: Natural, Yellow, Red Series Code: SR1018, SRF0015, SRF0014

Threaded Protection Caps - Metric Threads

Threaded Protection Caps are designed for use with Metric Threads. Protects threads and fittings from damage during manufacturing, storage and transportation. The knurled head shape allows for easy installation and removal by hand, by simply twisting them on to the pipe or tube.

  • Features a knurled head design that makes them easy to install and remove by hand by twisting them onto the pipe or tube.
  • Suitable for Metric threads
  • Used in various applications, including hydraulic and pneumatic systems, automotive, and industrial applications.
Series Code:

Threaded Protection Caps - UNF/JIC Threads

Threaded Protection Caps are designed for use with UNF and JIC Threads. Protects threads and fittings from damage during manufacturing, storage and transportation. The knurled head shape allows for easy installation and removal by hand, by simply twisting them on to the pipe or tube. Can tolerate temperatures between -30C and +80C.

  • Features a knurled head design that makes them easy to install and remove by hand by twisting them onto the pipe or tube.
  • If you pick the yellow option, they are made of HDPE and have a long profile, which allows for more threading turns.
  • Used in various applications, including hydraulic and pneumatic systems, automotive, and industrial applications.
  • Yellow option can withstand temperatures between Min. -30C, Max. +80C.
Series Code:

Threaded Protection Plugs

Threaded Protection Plugs designed for use on BSP and Gas Threads. Safeguards threads and fittings from damage and contaminants during production, storage and shipment. The knurled head design allows easy hand installation and removal on pipes and tubes, by simply twisting.

  • Features a knurled head design that makes them easy to install and remove by hand by twisting them onto the pipe or tube.
  • The protection plug protects from contaminants like dirt, dust, debris, and moisture out of the hole.
  • Used in various applications, including hydraulic, pneumatic and general engineering industries.
Material: LDPE, PA Colour: Red, Natural Series Code: SR1002, SR5757, SR1054

Threaded Protection Plugs - Metric Threads

Threaded Protection Plugs designed for use on Metric Threads. Shields threads and fittings from damage and contaminants during production, storage and shipment. Features a knurled head design for easy hand installation and removal, with a twisting motion. Ideal for applications exposed to high fluid flow and vibration.

  • Features a knurled head design that makes them easy to install and remove by hand by twisting them onto the pipe or tube.
  • Ideal for Metric thread applications exposed to high fluid flow residue and vibration.
  • Used in various applications, including hydraulic, pneumatic and general engineering industries.
Series Code:

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