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When a worn or undersized spring causes equipment to fail, misfire, or lose tension, finding an exact replacement becomes a frustrating search. Engineers, machinists, and hands-on DIYers who need a reliable stainless steel compression spring in a specific outer diameter and free length know how critical dimensional accuracy is — a spring that is even 1mm off can compromise the entire assembly.
These stainless steel compression springs feature a 1.6mm wire diameter and are available in outer diameters (OD) ranging from 10mm to 25mm (approximately 0.39 in to 0.98 in) and free lengths from 10mm to 200mm (approximately 0.39 in to 7.87 in). Constructed from stainless steel wire, they offer corrosion resistance suitable for both indoor and outdoor environments. Packing options of 1 pc or 5 pcs allow you to order exactly what your project requires.
Typical use cases include replacement springs for mechanical assemblies, jigs, and fixtures in workshop environments; compression springs for DIY electronics enclosures and switch mechanisms; and precision spring components for automotive, plumbing, and HVAC repair applications where a stainless steel compression spring with controlled OD and free length is essential.
| Wire Diameter | 1.6 mm |
|---|---|
| Outer Diameter (OD) | 10 mm – 25 mm (0.39 in – 0.98 in) |
| Free Length | 10 mm – 200 mm (0.39 in – 7.87 in) |
| Material | Stainless Steel |
| Spring Type | Compression |
| End Type | See variant options |
| Spring Rate | See variant options |
| Surface Finish | Natural stainless (uncoated) |
| Packing Quantity | 1 pc or 5 pcs (select above) |
Measure the bore or housing your spring sits inside to determine the maximum allowable OD, then subtract 0.5–1mm for clearance. For free length, measure the uncompressed space available and ensure the spring's free length is equal to or slightly longer than that distance so it maintains preload. Select the variant that matches both dimensions from the dropdown above.
Spring rate depends on wire diameter, OD, and free length together. A 1.6mm wire spring with a smaller OD and shorter free length will be stiffer than one with a larger OD and longer free length. If you need a specific spring rate (N/mm or lbf/in), please contact us with your OD and free length selection so we can provide guidance.
Yes. Stainless steel offers significantly better corrosion resistance than standard carbon steel springs. These are suitable for humid, damp, or lightly wet environments. For fully submerged or highly corrosive chemical environments, verify the specific stainless grade meets your requirements by contacting us.
Stainless steel retains its mechanical properties better than carbon steel at elevated temperatures. For standard workshop and household temperatures (up to approximately 150°C / 300°F), these springs perform reliably. For sustained high-heat applications beyond that range, please contact us to confirm suitability.
Both options contain identical springs — the only difference is quantity. The 5 pcs pack is priced for value when you need spares, are prototyping, or replacing multiple springs in one job. The 1 pc option is ideal when you need a single precise replacement. Select your preferred quantity in the Packing Qty dropdown above.
The inner diameter (ID) of the spring is approximately: OD minus (2 × wire diameter). For example, a 12mm OD spring with 1.6mm wire has an ID of roughly 12 − 3.2 = 8.8mm. Ensure your guide rod is smaller than this ID (typically by 0.5–1mm) to allow free movement without binding.
The listed variants cover OD 10–25mm and free lengths 10–200mm in the combinations shown. If you need a size outside these ranges or a specific spring rate, please contact us through the store's contact page and we will do our best to assist.
