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.751-916BrandRS PRO

AED 116.84

AED 11.684 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
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.751-865BrandRS PRO

AED 77.52

AED 7.752 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
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.751-837BrandRS PRO

AED 85.39

AED 8.539 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
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.821-453BrandRS PRO

AED 80.33

AED 8.033 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Stainless Steel
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.121-359BrandRS PRO

AED 83.42

AED 16.684 Each (In a Pack of 5) (ex VAT)

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RS Pro
Extension Spring
Steel
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.821-504BrandRS PRO

AED 73.58

AED 7.358 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Stainless Steel
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.751-663BrandRS PRO

AED 75.83

AED 7.583 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
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.751-944BrandRS PRO

AED 109.54

AED 10.954 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
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.751-950BrandRS PRO

AED 53.59

AED 53.59 1 Pack of 5 (ex VAT)

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RS Pro
Extension Spring
Steel
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.121-365BrandRS PRO

AED 123.87

AED 24.774 Each (In a Pack of 5) (ex VAT)

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RS Pro
Extension Spring
Steel
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.821-431BrandRS PRO

AED 70.22

AED 7.022 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Stainless Steel
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.751-859BrandRS PRO

AED 71.90

AED 7.19 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
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.751-821BrandRS PRO

AED 88.20

AED 8.82 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
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.894-6803BrandRS PRO

AED 51.96

AED 51.96 Each (ex VAT)

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

AED 87.07

AED 8.707 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
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.821-447BrandRS PRO

AED 73.58

AED 7.358 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Stainless Steel
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.751-691BrandRS PRO

AED 66.29

AED 6.629 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
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.751-887BrandRS PRO

AED 96.62

AED 9.662 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Steel
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.821-475BrandRS PRO

AED 73.58

AED 7.358 Each (In a Pack of 10) (ex VAT)

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RS Pro
Extension Spring
Stainless Steel
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.751-770BrandRS PRO

AED 69.66

AED 6.966 Each (In a Pack of 10) (ex VAT)

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