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Extension Springs

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Extension springs are helical coil springs designed to absorb energy while resisting pulling forces. The further they are stretched, the more force is generate, making them ideal for bringing two components together.

Common applications include Throttle Turn Mechanisms in Automotive, Trampolines, Fitness Equipment and Vibration Dampening Systems.

It is available in both Music Wire material, which is ideal for temperatures between -30 C and +120 C and for use in dry environments, and stainless Steel material, which is ideal for temperatures between -200 C and +250 C and for use in both dry and humid or wet environments. Key Factors to consider when choosing a spring for an application include Spring Material and the Working Environment, Spring Dimensions in both extended and non-extended states. Material: Stainless Steel, Carbon Steel Series Code:

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198 results
Product SKUs information
Item Code Price range Availability Loaded Length Spring Rate Initial Tension Overall Length Material Load at Load Length Outside Diameter View
£ 2.0552 - £ 2.2395 Request the lead time here
1.85 N
127.0 mm
Stainless Steel
19.64 N
£ 1.9844 - £ 2.1545 Request the lead time here
3.04 N
34.8 mm
Stainless Steel
33.57 N
£ 1.9844 - £ 2.1545 Request the lead time here
3.04 N
57.2 mm
Stainless Steel
33.57 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
25.4 mm
Stainless Steel
58.54 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
38.1 mm
Stainless Steel
58.54 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
63.5 mm
Stainless Steel
58.54 N
£ 1.5024 - £ 1.6442 Request the lead time here
6.23 N
69.9 mm
Carbon Steel
70.28 N
£ 1.5166 - £ 1.6584 Request the lead time here
1.78 N
38.1 mm
Carbon Steel
19.57 N
£ 1.5166 - £ 1.6584 Request the lead time here
1.78 N
63.5 mm
Carbon Steel
19.57 N
1217438 £ 1.6725 - £ 1.8143 Request the lead time here
1.78 N
101.6 mm
Carbon Steel
19.57 N
£ 1.5875 - £ 1.7292 Request the lead time here
7.56 N
34.8 mm
Carbon Steel
83.63 N
£ 1.7292 - £ 1.8851 Request the lead time here
7.56 N
57.2 mm
Carbon Steel
83.63 N
£ 1.5166 - £ 1.6584 Request the lead time here
1.78 N
44.5 mm
Carbon Steel
19.57 N
£ 1.5166 - £ 1.6584 Request the lead time here
1.78 N
69.9 mm
Carbon Steel
19.57 N
£ 1.9038 - £ 1.9038 Request the lead time here
1.78 N
114.3 mm
Carbon Steel
19.57 N
£ 1.7292 - £ 1.8851 Request the lead time here
7.56 N
69.9 mm
Carbon Steel
83.63 N
£ 1.8284 - £ 1.9844 Request the lead time here
7.56 N
114.3 mm
Carbon Steel
83.63 N
£ 2.4663 - £ 2.6789 Request the lead time here
12.32 N
63.5 mm
Carbon Steel
137.09 N
£ 2.6364 - £ 2.849 Request the lead time here
27.89 N
69.9 mm
Carbon Steel
309.98 N
£ 2.9057 - £ 3.1608 Request the lead time here
27.89 N
114.3 mm
Carbon Steel
309.98 N
  • of 10
Extension Spring 6.1 mm 0.15 Nmm Stainless Steel

1217504

Price Range
£ 2.2395 - £ 2.0552

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.85 N
  • Load at Load Length
    19.64 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    127.0 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.23 Nmm Stainless Steel

1217508

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.04 N
  • Load at Load Length
    33.57 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    34.8 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 0.50 Nmm Stainless Steel

1217512

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.04 N
  • Load at Load Length
    33.57 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    57.2 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 8.26 Nmm Stainless Steel

1217516

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    25.4 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 2.84 Nmm Stainless Steel

1217520

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    38.1 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.23 Nmm Stainless Steel

1217524

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    63.5 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.30 Nmm Carbon Steel

1217426

Price Range
£ 1.6442 - £ 1.5024

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    6.23 N
  • Load at Load Length
    70.28 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    69.9 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.30 Nmm Carbon Steel

1217430

Price Range
£ 1.6584 - £ 1.5166

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.78 N
  • Load at Load Length
    19.57 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    38.1 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.12 Nmm Carbon Steel

1217434

Price Range
£ 1.6584 - £ 1.5166

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.78 N
  • Load at Load Length
    19.57 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.05 Nmm Carbon Steel

1217438

Price Range
£ 1.8143 - £ 1.6725

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.78 N
  • Load at Load Length
    19.57 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    101.6 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 5.46 Nmm Carbon Steel

1217442

Price Range
£ 1.7292 - £ 1.5875

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    7.56 N
  • Load at Load Length
    83.63 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    34.8 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 2.14 Nmm Carbon Steel

1217446

Price Range
£ 1.8851 - £ 1.7292

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    7.56 N
  • Load at Load Length
    83.63 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    57.2 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.21 Nmm Carbon Steel

1217431

Price Range
£ 1.6584 - £ 1.5166

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.78 N
  • Load at Load Length
    19.57 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    44.5 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.11 Nmm Carbon Steel

1217435

Price Range
£ 1.6584 - £ 1.5166

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.78 N
  • Load at Load Length
    19.57 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    69.9 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.05 Nmm Carbon Steel

1217439

Price Range
£ 1.9038 - £ 1.9038

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.78 N
  • Load at Load Length
    19.57 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    114.3 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 1.61 Nmm Carbon Steel

1217448

Price Range
£ 1.8851 - £ 1.7292

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    7.56 N
  • Load at Load Length
    83.63 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    69.9 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.84 Nmm Carbon Steel

1217452

Price Range
£ 1.9844 - £ 1.8284

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    7.56 N
  • Load at Load Length
    83.63 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    114.3 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 3.33 Nmm Carbon Steel

1217456

Price Range
£ 2.6789 - £ 2.4663

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    12.32 N
  • Load at Load Length
    137.09 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 13.22 Nmm Carbon Steel

1217466

Price Range
£ 2.849 - £ 2.6364

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    27.89 N
  • Load at Load Length
    309.98 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    69.9 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 6.15 Nmm Carbon Steel

1217470

Price Range
£ 3.1608 - £ 2.9057

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    27.89 N
  • Load at Load Length
    309.98 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    114.3 mm
  • Material
    Carbon Steel