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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
£ 2.2678 - £ 2.4663 Request the lead time here
1.48 N
88.9 mm
Stainless Steel
16.30 N
£ 2.3104 - £ 2.5088 Request the lead time here
6.30 N
50.8 mm
Stainless Steel
69.66 N
£ 2.4663 - £ 2.6789 Request the lead time here
6.30 N
127.0 mm
Stainless Steel
69.66 N
£ 4.0538 - £ 4.4223 Request the lead time here
10.28 N
114.3 mm
Stainless Steel
114.19 N
£ 4.3089 - £ 4.6916 Request the lead time here
23.22 N
101.6 mm
Stainless Steel
258.22 N
£ 1.4316 - £ 1.5591 Request the lead time here
0.85 N
31.8 mm
Carbon Steel
9.21 N
£ 1.4316 - £ 1.5591 Request the lead time here
2.22 N
15.8 mm
Carbon Steel
23.58 N
1217396 £ 1.6584 - £ 1.6584 1110 In stock
2.22 N
44.5 mm
Carbon Steel
23.58 N
£ 1.8851 - £ 2.0411 Request the lead time here
2.22 N
114.3 mm
Carbon Steel
23.58 N
£ 1.5024 - £ 1.6442 Request the lead time here
3.65 N
50.8 mm
Carbon Steel
40.30 N
£ 1.5024 - £ 1.6442 Request the lead time here
6.23 N
34.8 mm
Carbon Steel
70.28 N
£ 1.5166 - £ 1.6584 Request the lead time here
1.78 N
31.8 mm
Carbon Steel
19.57 N
£ 1.8482 - £ 1.9315 1050 In stock
0.71 N
15.8 mm
Stainless Steel
7.67 N
£ 1.715 - £ 1.8568 Request the lead time here
0.71 N
44.5 mm
Stainless Steel
7.67 N
£ 1.715 - £ 1.8568 Request the lead time here
1.85 N
25.4 mm
Stainless Steel
19.64 N
£ 1.715 - £ 1.8568 Request the lead time here
1.85 N
63.5 mm
Stainless Steel
19.64 N
£ 1.5875 - £ 1.7292 Request the lead time here
7.56 N
44.5 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
£ 2.7923 - £ 3.0333 Request the lead time here
12.32 N
101.6 mm
Carbon Steel
137.09 N
1217553 £ 3.5577 - £ 3.8554 Request the lead time here
10.26 N
50.8 mm
Stainless Steel
114.20 N
  • of 10
Extension Spring 12.7 mm 0.06 Nmm Stainless Steel

1217536

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
    88.9 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 2.16 Nmm Stainless Steel

1217544

Price Range
£ 2.5088 - £ 2.3104

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    6.30 N
  • Load at Load Length
    69.66 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    50.8 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.61 Nmm Stainless Steel

1217552

Price Range
£ 2.6789 - £ 2.4663

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    6.30 N
  • Load at Load Length
    69.66 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    127.0 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 1.01 Nmm Stainless Steel

1217560

Price Range
£ 4.4223 - £ 4.0538

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    10.28 N
  • Load at Load Length
    114.19 N
  • Maximum Application Temperature
    230 °C
  • Overall Length
    114.3 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 5.97 Nmm Stainless Steel

1217568

Price Range
£ 4.6916 - £ 4.3089

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    23.22 N
  • Load at Load Length
    258.22 N
  • Maximum Application Temperature
    230 °C
  • Overall Length
    101.6 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.16 Nmm Carbon Steel

1217380

Price Range
£ 1.5591 - £ 1.4316

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    0.85 N
  • Load at Load Length
    9.21 N
  • Maximum Application Temperature
    121 °C
  • Overall Length
    31.8 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 3.99 Nmm Carbon Steel

1217388

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
    15.8 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 6.1 mm 0.19 Nmm Carbon Steel

1217404

Price Range
£ 2.0411 - £ 1.8851

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
    114.3 mm
  • Material
    Carbon 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 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 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 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 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
Extension Spring 6.1 mm 1.09 Nmm Stainless Steel

1217490

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
    25.4 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.32 Nmm Stainless Steel

1217498

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
    63.5 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 3.27 Nmm Carbon Steel

1217444

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
    44.5 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 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 19.1 mm 4.95 Nmm Stainless Steel

1217553

Price Range
£ 3.8554 - £ 3.5577

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