Extension Springs

An extension spring or tension spring is a length of tightly coiled metal, usually steel with hooks or loops at either end. Extension springs absorb and store energy. You can find out more in our extension springs guide.

What does it do?

An extension spring is a component that creates a resis...

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RS PRO Steel Extension Spring, 59 mm x 8.5 mm OD
RS Stock No.: 751-916Brand: RS PRO

193.00 MOP

19.303 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
59mm
98.6mm
8.5 mm
1.2mm
62.8N
1.35N/mm
DIN 17223, BS 1408 CR3, RoHS
RS PRO Steel Extension Spring, 50 mm x 10 mm OD
RS Stock No.: 751-865Brand: RS PRO

115.40 MOP

11.542 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
50mm
142.2mm
10 mm
0.9mm
24N
0.23N/mm
RoHS, DIN 17223, BS 1408 CR3
RS PRO Steel Extension Spring, 44.6 mm x 9 mm OD
RS Stock No.: 751-837Brand: RS PRO

127.30 MOP

12.727 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
44.6mm
130.2mm
9 mm
0.8mm
19N
0.19N/mm
BS 1408 CR3, DIN 17223, RoHS
RS PRO Stainless Steel Extension Spring, 37.7 mm x 5.5 mm OD
RS Stock No.: 821-453Brand: RS PRO

129.40 MOP

12.943 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Stainless Steel
Extension Spring
37.7mm
116.1mm
5.5 mm
0.5mm
6.5N
0.07N/mm
DIN 17223, BS 1408 CR3, RoHS
RS PRO Steel Extension Spring, 77.8 mm x 13 mm OD
RS Stock No.: 121-359Brand: RS PRO

116.40 MOP

23.289 MOP Each (In a Pack of 5) (ex VAT)

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RS Pro
Steel
Extension Spring
77.8mm
97.4mm
13 mm
2.5mm
317N
13.7N/mm
RoHS, DIN 17223, BS 1408 CR3
RS PRO Stainless Steel Extension Spring, 35 mm x 7 mm OD
RS Stock No.: 821-504Brand: RS PRO

123.00 MOP

12.304 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Stainless Steel
Extension Spring
35mm
101.5mm
7 mm
0.63mm
1N
0.13N/mm
BS 1408 CR3, DIN 17223, RoHS
RS PRO Steel Extension Spring, 27.2 mm x 4 mm OD
RS Stock No.: 751-663Brand: RS PRO

134.80 MOP

13.479 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
27.2mm
95.7mm
4 mm
0.36mm
4.26N
0.06N/mm
DIN 17223, RoHS, BS 1408 CR3
RS PRO Steel Extension Spring, 39.7 mm x 11 mm OD
RS Stock No.: 751-944Brand: RS PRO

188.40 MOP

18.845 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
39.7mm
58.4mm
11 mm
1.6mm
111N
5.02N/mm
BS 1408 CR3, RoHS, DIN 17223
RS PRO Steel Extension Spring, 87.7 mm x 17 mm OD
RS Stock No.: 751-950Brand: RS PRO

14.30 MOP

14.262 MOP 1 Pack of 5 (ex VAT)

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RS Pro
Steel
Extension Spring
87.7mm
224.7mm
17 mm
1.6mm
11N
0.46N/mm
RoHS, DIN 17223, BS 1408 CR3
RS PRO Steel Extension Spring, 85.5 mm x 18 mm OD
RS Stock No.: 121-365Brand: RS PRO

200.90 MOP

40.19 MOP Each (In a Pack of 5) (ex VAT)

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RS Pro
Steel
Extension Spring
85.5mm
133.1mm
18 mm
2.5mm
237N
4.27N/mm
RoHS, DIN 17223, BS 1408 CR3
RS PRO Stainless Steel Extension Spring, 24.5 mm x 3.5 mm OD
RS Stock No.: 821-431Brand: RS PRO

101.70 MOP

10.171 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Stainless Steel
Extension Spring
24.5mm
41.8mm
3.5 mm
0.5mm
10N
0.49N/mm
DIN 17223, BS 1408 CR3, RoHS
RS PRO Steel Extension Spring, 44.1 mm x 6.3 mm OD
RS Stock No.: 751-859Brand: RS PRO

119.20 MOP

11.92 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
44.1mm
73.8mm
6.3 mm
0.9mm
37.1N
1.06N/mm
DIN 17223, RoHS, BS 1408 CR3
RS PRO Steel Extension Spring, 32.6 mm x 9 mm OD
RS Stock No.: 751-821Brand: RS PRO

131.00 MOP

13.098 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
32.6mm
86.1mm
9 mm
0.8mm
19N
0.3N/mm
DIN 17223, RoHS, BS 1408 CR3
RS PRO Steel Gate Spring, 200 mm
RS Stock No.: 894-6803Brand: RS PRO

24.20 MOP

24.22 MOP Each (ex VAT)

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RS Pro
Steel
Gate Spring
200mm
-
-
-
-
-
No
RS PRO Steel Extension Spring, 34.4 mm x 12 mm OD
RS Stock No.: 751-893Brand: RS PRO

129.20 MOP

12.922 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
34.4mm
76.7mm
12 mm
1.1mm
35.8N
0.72N/mm
DIN 17223, RoHS, BS 1408 CR3
RS PRO Stainless Steel Extension Spring, 27.7 mm x 5.5 mm OD
RS Stock No.: 821-447Brand: RS PRO

129.70 MOP

12.974 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Stainless Steel
Extension Spring
27.7mm
80mm
5.5 mm
0.5mm
6.5N
0.11N/mm
DIN 17223, RoHS, BS 1408 CR3
RS PRO Steel Extension Spring, 25 mm x 5 mm OD
RS Stock No.: 751-691Brand: RS PRO

105.90 MOP

10.594 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
25mm
80.8mm
5 mm
0.45mm
6.48N
0.11N/mm
DIN 17223, RoHS, BS 1408 CR3
RS PRO Steel Extension Spring, 75.4 mm x 11 mm OD
RS Stock No.: 751-887Brand: RS PRO

143.70 MOP

14.365 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
75.4mm
224.4mm
11 mm
1mm
29.6N
0.17N/mm
RoHS, BS 1408 CR3, DIN 17223
RS PRO Stainless Steel Extension Spring, 30.4 mm x 6 mm OD
RS Stock No.: 821-475Brand: RS PRO

128.50 MOP

12.85 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Stainless Steel
Extension Spring
30.4mm
86.6mm
6 mm
0.55mm
7.9N
0.12N/mm
BS 1408 CR3, DIN 17223, RoHS
RS PRO Steel Extension Spring, 35 mm x 7 mm OD
RS Stock No.: 751-770Brand: RS PRO

118.30 MOP

11.83 MOP Each (In a Pack of 10) (ex VAT)

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RS Pro
Steel
Extension Spring
35mm
101.5mm
7 mm
0.63mm
12.2N
0.16N/mm
DIN 17223, RoHS, BS 1408 CR3