RS PRO Stainless Steel Extension Spring, 27.7mm x 5.5mm

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Subtotal (1 pack of 10 units)*

£11.26

(exc. VAT)

£13.51

(inc. VAT)

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  • 170 unit(s) ready to ship
  • Plus 320 unit(s) ready to ship from another location
  • Plus 1,190 unit(s) shipping from 31 October 2025
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10 +£1.126£11.26

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RS Stock No.:
821-447
Distrelec Article No.:
304-18-891
Brand:
RS PRO
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Brand

RS PRO

Material

Stainless Steel

Free Length

27.7mm

Maximum Extended Length

80mm

Outside Diameter

5.5mm

Wire Diameter

0.5mm

Initial Tension

6.5N

Spring Rate

0.11N/mm

Ends

Looped

COO (Country of Origin):
GB

RS PRO Stainless Steel Extension Spring


From the trusted brand RS PRO, a range of high-quality stainless-steel extension springs when extended create a resistance to a pulling force, absorb and store energy. Our extension springs are quick and easy to install, commonly used on garage door assemblies, automotive interiors and exteriors, and much more.

How do they work?


Extension springs are coils attached by two components from both ends of the spring. When pulled apart the extension springs pull them back together again. The springs' tension can be adapted depending on the application load requirements.

Why would you choose RS PRO for Extension Springs?


Extension springs are often the least expensive part of your assemblies, failure can mean costly machine downtime and product rejects. To ensure quality and longer reliability RS PRO offer a range of stainless steel extension springs with various spring rates and length to suit your application.

Features and Benefits


  • Absorb and store energy

  • Pulling force resistance

  • Wound springs

  • Loop ends

  • Available in various sizes

Specification


  • Material: Stainless Steel

  • Wire diameter: 0.5 mm to 0.7 mm

  • Spring rate: 0.11 N/mm to 0.64 N/mm

Applications


  • Automotive interiors and exteriors

  • Garage door assemblies

  • Vice-grip pliers

  • Trampolines

  • Washing devices

  • Farm machinery

Note

Extension springs should not be exposed to the same stress levels as a compression springs.

Standards

Material to DIN 17224 No. 1 4310 or BS2056 EN58A with a right hand helix
All dimensions conform to DIN 2097 (Grade 2).

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