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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
£ 1.5166 - £ 1.6584 Request the lead time here
1.78 N
76.2 mm
Carbon Steel
19.57 N
£ 2.2678 - £ 2.4663 Request the lead time here
1.48 N
101.6 mm
Stainless Steel
16.30 N
£ 2.7923 - £ 3.0333 Request the lead time here
12.32 N
101.6 mm
Carbon Steel
137.09 N
£ 1.4316 - £ 1.5591 Request the lead time here
2.22 N
19.1 mm
Carbon Steel
23.58 N
£ 1.9844 - £ 2.1545 Request the lead time here
3.04 N
28.5 mm
Stainless Steel
33.57 N
£ 2.6364 - £ 2.849 Request the lead time here
27.89 N
88.9 mm
Carbon Steel
309.98 N
£ 1.5024 - £ 1.6442 Request the lead time here
6.23 N
69.9 mm
Carbon Steel
70.28 N
1217396 £ 1.6584 - £ 1.6584 1110 In stock
2.22 N
44.5 mm
Carbon Steel
23.58 N
£ 1.5875 - £ 1.7292 Request the lead time here
7.56 N
34.8 mm
Carbon Steel
83.63 N
£ 1.715 - £ 1.8568 Request the lead time here
1.85 N
57.2 mm
Stainless Steel
19.64 N
£ 1.5024 - £ 1.6442 Request the lead time here
3.65 N
50.8 mm
Carbon Steel
40.30 N
£ 2.6647 - £ 2.8915 Request the lead time here
12.32 N
76.2 mm
Carbon Steel
137.09 N
£ 1.9844 - £ 2.1545 Request the lead time here
3.04 N
63.5 mm
Stainless Steel
33.57 N
£ 1.5166 - £ 1.6584 Request the lead time here
1.78 N
31.8 mm
Carbon Steel
19.57 N
£ 1.5024 - £ 1.6442 Request the lead time here
6.23 N
34.8 mm
Carbon Steel
70.28 N
£ 2.6364 - £ 2.849 Request the lead time here
27.89 N
69.9 mm
Carbon Steel
309.98 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
44.5 mm
Stainless Steel
58.54 N
£ 1.8482 - £ 1.9315 1050 In stock
0.71 N
15.8 mm
Stainless Steel
7.67 N
1217529 £ 1.9844 - £ 2.1545 Request the lead time here
1.48 N
38.1 mm
Stainless Steel
16.30 N
£ 1.715 - £ 1.8568 Request the lead time here
0.71 N
44.5 mm
Stainless Steel
7.67 N
  • of 10
Extension Spring 12.7 mm 0.09 Nmm Carbon Steel

1217436

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
    76.2 mm
  • Material
    Carbon Steel
Extension Spring 12.7 mm 0.04 Nmm Stainless Steel

1217537

Price Range
£ 2.4663 - £ 2.2678

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.48 N
  • Load at Load Length
    16.30 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    101.6 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 1.44 Nmm Carbon Steel

1217460

Price Range
£ 3.0333 - £ 2.7923

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
    101.6 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 2.42 Nmm Carbon Steel

1217389

Price Range
£ 1.5591 - £ 1.4316

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    2.22 N
  • Load at Load Length
    23.58 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    19.1 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 2.10 Nmm Stainless Steel

1217506

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
    28.5 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 8.83 Nmm Carbon Steel

1217468

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
    88.9 mm
  • Material
    Carbon 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 6.1 mm 0.60 Nmm Carbon Steel

1217396

Price Range
£ 1.6584 - £ 1.6584

Stock Levels
1110 In stock
Attributes
  • Initial Tension
    2.22 N
  • Load at Load Length
    23.58 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    44.5 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 6.1 mm 0.37 Nmm Stainless Steel

1217497

Price Range
£ 1.8568 - £ 1.715

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
    57.2 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 0.72 Nmm Carbon Steel

1217412

Price Range
£ 1.6442 - £ 1.5024

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.65 N
  • Load at Load Length
    40.30 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    50.8 mm
  • Material
    Carbon Steel
Extension Spring 19.1 mm 2.31 Nmm Carbon Steel

1217458

Price Range
£ 2.8915 - £ 2.6647

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
    76.2 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 0.42 Nmm Stainless Steel

1217513

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
    63.5 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.49 Nmm Carbon Steel

1217428

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
    31.8 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 4.12 Nmm Carbon Steel

1217420

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
    34.8 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 10.6 mm 2.14 Nmm Stainless Steel

1217521

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
    44.5 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.63 Nmm Stainless Steel

1217474

Price Range
£ 1.9315 - £ 1.8482

Stock Levels
1050 In stock
Attributes
  • Initial Tension
    0.71 N
  • Load at Load Length
    7.67 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    15.8 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.25 Nmm Stainless Steel

1217529

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.48 N
  • Load at Load Length
    16.30 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    38.1 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.09 Nmm Stainless Steel

1217482

Price Range
£ 1.8568 - £ 1.715

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    0.71 N
  • Load at Load Length
    7.67 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    44.5 mm
  • Material
    Stainless Steel