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Indexing Plungers

 (14 product groups)

Indexing plungers and spring plungers at Essentra Components are offered in various types such as cam action, flanged and threaded non-locking, in addition to threaded spring plungers. These mechanical components are used across a variety of applications from gym equipment, conveyors and medical equipment to machine and fixture applications. Each component is available in various metric thread sizes dependant on the requirements of your project. In addition to our indexing and spring plungers, we stock mounting blocks and flanges in a wide range of sizes, with the choice of a powder coated finish.
List Grid

Indexing Plungers - Cam Action

Our Cam Plungers are supplied in either stainless steel or burnished steel. The Cam Plungers are offered in a variety of plunger diameters.

Series Code :SR5410

Indexing Plungers - Flanged

Essentra's range of Flanged Index plungers have a flange with screw holes for extra fastening. They are ideal for use on thin materials.

Series Code :SR6571

Indexing Plungers - Locking and Non-Locking

Non-Locking Threaded Index Plungers allow for rapid adjustments on a variety of platforms, fixtures, and tables. They are used for locating, positioning, indexing and securing on applications such as gym equipment, medical aids, catering equipment, conveyors, etc.

Series Code :SR5408

Mounting Blocks & Flanges

Mounting Blocks & Flanges

Press Fit Plungers

These Press Fit Spring Plungers are used as detents as well as for push-on and push-off applications and ejectors. Available in type 1 - Stainless Steel Housing and Ball – AISI 305/20c & type 2 - Plastic Housing and Stainless Steel Ball.

Series Code :SR6575

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: Stainless Steel, Black Steel

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: Stainless Steel

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

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: ThermoplasticColour: Black

Spring Plungers - Pin - Hex Socket

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

The slotted design enables easy adjustment and precise alignment, allowing the plunger's extension or retraction to be fine-tuned to meet individual needs. The plunger pin can be quickly extended or retracted using manual force by push fitting, allowing for rapid modifications or changes in position.

The hex socket makes it easy to drive the spring plunger with a hex key. The threaded body makes it easy to integrate into existing systems or buildings. 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 has three components: a threaded body, a pin end, and a spring mechanism, as well as a hexagonal socket.
  • It can withstand temperatures from -30C to +50C; however, if your Pin is made of stainless steel, it can withstand temperatures up to 250C.
  • Slotted design enables easy adjustment and precise alignment, allowing the plunger's extension or retraction to be fine-tuned.
Material: Stainless Steel, Steel, Black Steel

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

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

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

Spring Plungers - Threaded/Locking

Spring Plungers, commonly known as Index Plungers, are used for locating, positioning, indexing and securing. Also referred to as Spring Loaded Plungers; these plungers allow for rapid adjustments on a variety of platforms, fixtures and tables. This plunger range is suitable for use on gym equipment, medical aids, catering equipment, conveyors and many other applications.

Our range includes Ball and Spring Index Plungers available in either Stainless Steel or Burnished Steel that are Natural in appearance. Also available are Index Plungers, with or without a 90 degree locking rest positon, made from High Impact Resistant Thermoplastic that has a Black matte finish. They also have a choice of insert material; Burnished or Stainless Steel.