Extension Springs

Specifications & Materials

Music Wire to DIN 17223, Class C. No.1.1200 or BS 1408 CR3.

Stainless Steel Wire to DIN 17224, No.1.14310 or BS 2056 302S26.

Ends: German loops, random position

Note: All Springmasters Extension Springs are right hand coiled.

Tolerances: All dimensions and forces conform to DIN 2095 (Grade 2) or BS 1726 Class B.

Surface Finish:
Music Wire = Oiled
Stainless Steel = Self

Recommended Working Temps:
Music Wire = 120°C (max.)
Stainless Steel = 300°C (max.)

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Extension Spring Database

Min. Wire Dia.

Max. Wire Dia.
Min. Outside Dia.

Max. Outside Dia.
Min. Free Length

Max. Free length
Wire type:

Note: Extension spring search results will include a 10% tolerance.

Alternatively, if you wish to inspect the material, wire diameter, size, free length, number of coils and rate N/mm of a particular spring, please submit the part number and the internal search engine will locate the page containing that particular compression spring within it.

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For your imperial sized extension spring requirements please contact Springmasters with your specifications.

Assorted Boxes of Compression Springs

Buy online... assorted imperial and assorted metric compression springs.

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