Stainless Steel Compression Spring, 0.7mm Wire, 5mm - 50mm Length, Small Springs

Measure the bore or spring seat in your assembly to determine the maximum allowable outer diameter — the spring OD should be slightly smaller than the bore for a sliding fit. For free length, measure the uncompressed gap your spring needs to fill, then add your required travel distance. Use the variant selector above to pick the OD and length combination that matches your measurements.

A 0.7mm wire diameter is suited to light-duty applications — typically in the range of a few hundred grams to a few kilograms of force depending on the outer diameter, free length, and number of active coils. For precise load requirements, contact us to confirm the spring rate for your selected variant before ordering.

Yes. These springs are made from stainless steel, which provides good resistance to surface oxidation and rust in indoor and moderately humid environments. They are not rated for continuous submersion or highly corrosive chemical exposure. For outdoor or marine applications, verify suitability with your specific conditions.

Absolutely. The 5mm–12mm OD range and 5mm–50mm length range make these springs well-suited for 3D printer extruder return mechanisms, bed leveling spring seats, button return mechanisms in electronics enclosures, and similar light-duty precision applications. Select the variant that matches your printer or device's spring seat dimensions.

All three pack sizes contain identical springs — the only difference is quantity. The 10-piece pack is ideal for prototyping or single-project use. The 50-piece pack suits small production runs or keeping a repair stock on hand. The 200-piece pack offers the best per-unit value for ongoing production, bulk replacement, or workshop inventory.

Check three key dimensions: (1) Outer Diameter — must be smaller than your bore or spring seat; (2) Inner Diameter — must be larger than any guide rod passing through the spring (inner diameter is approximately OD minus 2× wire diameter, so roughly OD minus 1.4mm for these springs); (3) Free Length — must match your uncompressed gap plus required travel. If you need confirmation on a specific variant, contact us before ordering.

Stainless steel offers better corrosion resistance than carbon steel, but these springs are not rated for continuous outdoor exposure, salt spray, or submersion. For indoor DIY automation, electronics, and workshop use they perform reliably. For outdoor or marine environments, consider a higher-grade stainless alloy or a coated spring.