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Threaded Spring Plungers

 (65 product groups)


Pull Handles - Bridge Shape Plastic

This range of Pull Handles have a bridge shape with a rectangular bar. These strong handles are commonly used for both the opening and closure of doors, and for the lids on heavy cabinets.

They are an economical choice that is well suitable to a number of applications and industries, including; railway, machinery, and electrical or industrial equipment.

Our offer features a selection of material and finish options to suit different environments, as well as a choice of pulling strengths and thread styles. The range also has options suitable for front or rear mounting.

  • Material: Duroplast, Thermoplastic
  • Colour: White, Black, Yellow, Natural

Push Fit End Caps

Push Fit End Caps are a simple and economical way of protecting metric and UNF threads during painting, assembly, and transportation.

Manufactured from a soft, durable TPE that provides a better grip, and a tight fit. Easy to install and remove.

Commonly used in plumbing, HVAC, and industrial applications.

  • Suitable metric and UNF threads.
  • Protects pipe ends from damage. Keeps dirt and debris out.
  • Can operate in temperatures ranging from -60 C up to 135 C.
Material: LDPE, TPE Colour: Red, Blue Series Code: SR1161, SRCFBTPE, SRCFB

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, LDPE - PIR 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

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 - PIR, 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

Spring Plungers - Ball - Slotted

These Spring Plunger with a ball and slotted are used for locating, applying pressure, and lifting off. They have three components: a threaded body, a stainless ball, and a spring mechanism. The spring on the plunger provides the necessary force to keep the plunger in either the extended or retracted position.

The slotted design allows for simple adjustment and exact positioning, allowing one to fine-tune the plunger's extension or retraction to fit individual needs. While the stainless ball is selected for its outstanding corrosion resistance, it ensures the plunger's longevity and reliability even in tough settings. Additionally, the stainless steel ball enables smooth functioning, eliminating friction and wear.

It is simple to install and use and is designed to handle high stress and pressure. The threaded body makes it easy to integrate into existing systems or buildings. It can withstand temperatures up to 250C. These spring plungers are widely utilised in various industries, including medical, optics, orthopaedics, machine and fixture design, lighting equipment, and electronic components, due to their endurance and versatility.

  • Slotted design allows for simple adjustment and exact positioning, allowing one to fine-tune the plunger's extension or retraction to fit individual needs.
  • The stainless steel ball enables smooth functioning, eliminating friction and wear.
  • It can withstand temperatures up to 250C.
Material: 303 Stainless Steel, Blackened steel Series Code: SR32100

Spring Plungers - Ball End - Hex

Spring plungers, with a ball and hexagonal socket, are used to locate, apply pressure and lift off. They consist of three components: threaded body, stainless steel ball and spring mechanism. The spring provides quick locating and indexing.

The hexagonal socket design allows for easy installation and adjustment, using standard hexagonal wrenches, ensuring a secure fit and efficient handling tailored to individual needs. The stainless ball is selected for its outstanding corrosion resistance, ensuring the plungers longevity and reliability, even in tough settings. The smooth surface of the stainless steel ball allows for low-friction contact that reduces wear and enhances the lifespan of both the plunger and its mating components.

The threaded body simplifies integration into existing systems or structures. Options for 'normal' spring force and 'increased' can be tailored to the application.

  • Can withstand temperatures of up to 250C.
  • Due to their durability and versatility these spring plungers are widely used in applications that require frequent engagement and disengagement .
  • Common applications include quick-release mechanisms, assembly fixtures, machine and fixture design, electronics, and locking systems.
Material: Blackened steel, 303 Stainless Steel Series Code: SR31500

Spring Plungers - Ball End - Smooth

These Spring Plungers with a ball end and a smooth body design are used for locating, applying pressure or lifting off. It is made of three parts: a smooth body, a ball end, and a spring mechanism. They resemble pin-end spring plungers, but the ball end engages more gently and reduces wear and tear on both the workpiece and the plunger.

The plunger's ball end provides a point of contact for accurate engagement and positioning within the application. The collar on the spring plunger serves as a retention function, keeping the plunger securely in place once inserted.

Its smooth body facilitates insertion and is held in place using an interference fit, as well as quick release. It can withstand temperatures of up to 250ºC and is widely utilised in machine and fixture design, electronics, medical, electronics, automotive, and lighting equipment.

  • Used for locating, applying pressure or lifting off.
  • Resemble pin-end spring plungers, but the ball end engages more gently and reduces wear and tear on both the workpiece and the plunger.
  • It can withstand temperatures of up to 250ºC.
Material: Brass, Stainless Steel, Body & Ball Thermoplast, Body Thermo, Ball S/S, Brass; Stainless Steel Series Code: SR32300, SR32280, SR32284

Spring Plungers - Ceramic Ball - Slotted

These Spring Plunger with Ceramic Ball and slotted are used for locating, applying pressure, and lifting off. They have three components: a threaded body, a ceramic ball, and a spring mechanism. The spring on the plunger provides the necessary force to keep the plunger in either the extended or retracted position.

The slotted design allows for simple adjustment and exact positioning, allowing one to fine-tune the plunger's extension or retraction to fit individual needs. While the ceramic ball has high hardness, wear, and corrosion resistance, it reduces the possibility of galling or damage to the mating surfaces.

It is simple to install and use and is designed to handle high stress and pressure. The threaded body makes it easy to integrate into existing systems or buildings. It can withstand temperatures up to 250C. These spring plungers are widely utilised in various industries, including medical, optics, orthopaedics, machine and fixture design, lighting equipment, and electronic components, due to their endurance and versatility.

  • The slotted design allows for simple adjustment and exact positioning, allowing one to fine-tune the plunger's extension or retraction.
  • The ceramic ball has high hardness, wear, and corrosion resistance, reducing the possibility of galling or damage to mating surfaces.
  • It can withstand temperatures up to 250C.
Material: Stainless Steel Series Code: SR32102

Spring Plungers - Expander Fit

These Expander Fit Spring Plungers are used for positioning, applying pressure, and lifting off. Its unique body design bends to expand, contract, and adjust to bore location tolerances as broad as + 0.2 mm d4.

Its material provides excellent strength in various conditions and temperatures, as well as corrosion resistance, control, and stability. It is quick and easy in production and assembly, and it removes the requirement for the cost of high-accuracy machining and part preparation.

It is recommended that it be used as a single, one-time installation for optimum results since repeated actions of install and uninstall can diminish its capacity to expand into holes with broader tolerances owing to plastic fatigue. It is resistant to temperatures ranging from -30C to +50C. Ideal for applications in plastic moulded components for machine and fixture design, electronics, medical and lighting equipment.

  • Used for positioning, applying pressure, and lifting off.
  • Its unique body design bends to expand, contract, and adjust to bore location tolerances as broad as + 0.2 mm d4.
  • It can withstand temperatures ranging from -30C to +50C.
Material: Thermoplastic Colour: Black Series Code: SR32302

Spring Plungers - Pin - Slotted

These Spring Plungers - Pin - Slotted are used for positioning, indexing, applying pressure, lifting off, and locking. They are made of three parts: a threaded body, a plunger pin, and a spring mechanism. The plunger's spring provides force to hold the plunger in either the extended or retracted position.
Commonly used for precise alignment and secure positioning of components. Extending or retracting the plunger pin can lock or release a component, ensuring accurate alignment and preventing unintended movement. When the plunger pin is extended, it locks into place, preventing the component from being accidentally moved or dislodged.
It is simple to install and use and is designed to handle high stress and pressure. The threaded body makes it easy to integrate into existing systems or buildings. The plunger pin can be easily extended or retracted using manual force by push fitting, allowing for quick adjustments or changes in position. It can withstand temperatures up to 250ºC and is commonly used in industry sectors such as machine and fixture design, electronics, medical and lighting equipment.

  • Extending or retracting the plunger pin can lock or release a component, ensuring accurate alignment and preventing unintended movement.
  • It is simple to install and use and is designed to handle high stress and pressure.
  • It can withstand temperatures up to 250ºC.
Material: Stainless Steel, Black Steel Series Code: SR32150

Spring Plungers - Pin End - Smooth

These smooth-body Spring Plungers with a pin end are used for locating, applying pressure, and lifting off. They have three components: a smooth body, a plunger pin, and a spring mechanism. The spring on the plunger provides the necessary force to keep the plunger in either the extended or retracted position.

The spring plunger's pin end has a rounded tip for precise engagement and alignment within the application.

Its smooth body makes insertion easy and is held in place using an interference fit, while the pin end allows for accurate engagement and alignment. If the Pin is made of thermoplastic, it can withstand temperatures from -30C to +50C; however, if your Pin is made of stainless steel, it can withstand temperatures up to 250C. These spring plungers are widely utilised in various industries, including medical, optics, orthopaedics, machine and fixture design, lighting equipment, and electronic components, due to their endurance and versatility.

  • It provides the necessary force to keep the plunger in either the extended or retracted position.
  • Spring plunger's pin end has a rounded tip for precise engagement and alignment within the application.
  • It can withstand temperatures from -30C to +50C; however, if your Pin is made of stainless steel, it can withstand temperatures up to 250C.
Material: Stainless Steel Series Code: SR32282

Spring Plungers - Pull Ring/Hand-Retractable

Spring Plunger with a Pull Ring that is also hand-retractable. The design features Nickel Plated housing and a Stainless Steel Pin.

The pull ring provides a convenient way to lift the plunger. These plungers are ideal for locating, positioning and securing. Common applications include gym equipment, such as weights apparatus.

Thread sizes include M6, M8, M10 and M12.

  • Housing Material: Nickel Plated Steel
  • Pin Material: Stainless Steel


Series Code :SR5407

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, LDPE - PIR, TPE - PIR 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, LDPE - PIR Colour: Red, Blue, Black, Clear, Yellow Series Code: SR1000, SR1111, SRF0020

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