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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
£ 1.4316 - £ 1.5591 Request the lead time here
0.85 N
25.4 mm
Carbon Steel
9.21 N
£ 1.4316 - £ 1.5591 Request the lead time here
0.85 N
38.1 mm
Carbon Steel
9.21 N
1217386 £ 1.4316 - £ 1.5591 Request the lead time here
0.85 N
63.5 mm
Carbon Steel
9.21 N
£ 1.4316 - £ 1.5591 Request the lead time here
2.22 N
22.4 mm
Carbon Steel
23.58 N
£ 1.4316 - £ 1.5591 Request the lead time here
2.22 N
34.8 mm
Carbon Steel
23.58 N
£ 1.8851 - £ 2.0411 Request the lead time here
2.22 N
88.9 mm
Carbon Steel
23.58 N
£ 1.5024 - £ 1.6442 Request the lead time here
3.65 N
25.4 mm
Carbon Steel
40.30 N
£ 1.5024 - £ 1.6442 Request the lead time here
6.23 N
69.9 mm
Carbon Steel
70.28 N
£ 1.4316 - £ 1.5591 Request the lead time here
0.85 N
28.5 mm
Carbon Steel
9.21 N
1217438 £ 1.6725 - £ 1.8143 Request the lead time here
1.78 N
101.6 mm
Carbon Steel
19.57 N
£ 1.4316 - £ 1.5591 Request the lead time here
0.85 N
44.5 mm
Carbon Steel
9.21 N
£ 1.5875 - £ 1.7292 Request the lead time here
7.56 N
34.8 mm
Carbon Steel
83.63 N
£ 1.4316 - £ 1.5591 Request the lead time here
0.85 N
69.9 mm
Carbon Steel
9.21 N
£ 1.7292 - £ 1.8851 Request the lead time here
7.56 N
57.2 mm
Carbon Steel
83.63 N
£ 1.4316 - £ 1.5591 Request the lead time here
2.22 N
57.2 mm
Carbon Steel
23.58 N
£ 1.5024 - £ 1.6442 Request the lead time here
3.65 N
38.1 mm
Carbon Steel
40.30 N
£ 1.5024 - £ 1.6442 Request the lead time here
3.65 N
63.5 mm
Carbon Steel
40.30 N
£ 1.4316 - £ 1.5591 Request the lead time here
0.85 N
15.8 mm
Carbon Steel
9.21 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
  • of 10
Extension Spring 6.1 mm 0.23 Nmm Carbon Steel

1217378

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
    25.4 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.12 Nmm Carbon Steel

1217382

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
    38.1 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.05 Nmm Carbon Steel

1217386

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
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 1.73 Nmm Carbon Steel

1217390

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
    22.4 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.84 Nmm Carbon Steel

1217394

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
    34.8 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.26 Nmm Carbon Steel

1217402

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
    88.9 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 3.85 Nmm Carbon Steel

1217406

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
    25.4 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 0.19 Nmm Carbon Steel

1217379

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
    28.5 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 6.1 mm 0.11 Nmm Carbon Steel

1217383

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
    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 0.05 Nmm Carbon Steel

1217387

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
    69.9 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 6.1 mm 0.44 Nmm Carbon Steel

1217398

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
    57.2 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 1.21 Nmm Carbon Steel

1217410

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
    38.1 mm
  • Material
    Carbon Steel
Extension Spring 10.6 mm 0.51 Nmm Carbon Steel

1217414

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
    63.5 mm
  • Material
    Carbon Steel
Extension Spring 6.1 mm 0.75 Nmm Carbon Steel

1217375

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
    15.8 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