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Extension Springs
Extension springs are open-coil spiral (helical) springs that offer resistance to a tension force, or load, applied along the axis of the spring. When a load is placed on an extension spring, making it longer, the spring pulls back against the load to try and return… Learn More
Extension springs are made of various materials, which are chosen for such properties as tensile strength, fatigue strength, corrosion resistance, electrical and thermal conductivity, and magnetizability. When purchasing a spring, consider the material, outside diameter, free length, extended length, load capacity, spring rate, and wire diameter, according to the specific application.
Showing 3,713 results in 423 families
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Extension Spring, 302 Stainless Steel, Inch, 0.094" OD, 0.011" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $23.10 – $23.70
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Music Wire Extension Spring, Steel, Inch, 0.094" OD, 0.016" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $21.07 – $22.18
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Extension Spring, 302 Stainless Steel, Inch, 0.75" OD, 0.085" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $40.30 – $47.74
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Extension Spring, 302 Stainless Steel, Inch, 0.5" OD, 0.055" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $25.92 – $28.73
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Extension Spring, 302 Stainless Steel, Inch, 0.12" OD, 0.016" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $21.87 – $21.99
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Associated Spring Raymond Extension Spring, 302 Stainless Steel, Metric, 5.5 mm OD, 0.5 mm Wire Size (Pack of 10)
(multiple sizes available)
Prices between $23.29 – $23.97
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Music Wire Extension Spring, Steel, Inch, 0.65" OD, 0.069" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $26.16 – $30.21
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Music Wire Extension Spring, Steel, Inch, 0.12" OD, 0.018" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $20.28 – $20.32
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Extension Spring, 302 Stainless Steel, Inch, 0.094" OD, 0.014" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $23.07 – $23.59
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Extension Spring, 302 Stainless Steel, Inch, 0.063" OD, 0.008" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $23.10 – $24.24
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Extension Spring, 302 Stainless Steel, Inch, 0.36" OD, 0.045" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $21.96 – $30.28
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Music Wire Extension Spring, Steel, Inch, 0.094" OD, 0.01" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $21.70 – $22.29
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Music Wire Extension Spring, Steel, Inch, 0.12" OD, 0.02" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $20.32 – $20.88
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Stainless Steel 302 Extension Spring, 0.313 OD x 0.037" Wire Size x 1.125" Free Length (Pack of 10)
Price $22.96
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Associated Spring Raymond Extension Spring, 302 Stainless Steel, Metric, 7.5 mm OD, 0.7 mm Wire Size (Pack of 10)
(multiple sizes available)
Prices between $25.08 – $25.77
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Music Wire Extension Spring, Steel, Inch, 0.063" OD, 0.011" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $21.64 – $22.18
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Extension Spring, 302 Stainless Steel, Inch, 0.24" OD, 0.037" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $23.02 – $23.59
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Extension Spring, 302 Stainless Steel, Inch, 0.18" OD, 0.02" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $21.39 – $22.56
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Music Wire Extension Spring, Steel, Inch, 0.063" OD, 0.008" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $21.67 – $22.26
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Extension Spring, 302 Stainless Steel, Inch, 0.5" OD, 0.041" Wire Size (Pack of 10)
(multiple sizes available)
Prices between $22.60 – $29.11