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When a mechanism fails because a spring loses tension, corrodes, or simply doesn't fit, the whole assembly stops working. Engineers, makers, and maintenance technicians who need a dependable, corrosion-resistant compression spring in a compact 1mm wire diameter will find this range covers virtually every application without custom ordering.
Each spring is formed from 304-grade stainless steel wire with a wire diameter of 1mm (0.039 in). Outer diameters span 6mm–18mm (0.24–0.71 in) and free lengths run from 10mm to 305mm (0.39–12.0 in), with closed and ground ends for stable seating. Sold in packs of 1, 5, or 10 pieces depending on the size selected.
Typical use cases include small appliance mechanisms requiring a compact 1mm wire compression spring, electronics enclosure latches needing a stainless steel pressure spring for corrosion resistance, and light industrial jigs or fixtures where a precise free-length compression spring replacement is required.
Resists oxidation, mild acids, and humidity — suited for both indoor mechanisms and outdoor-exposed assemblies where carbon steel would corrode.
Wire Φ fixed at 1mm; outer diameters from 6mm to 18mm; free lengths from 10mm to 305mm — one listing covers the full range so you can match your exact bore and travel requirement.
Flat, ground end coils provide a stable seating surface, reducing lateral deflection and ensuring consistent load transfer in precision assemblies.
Available in packs of 1, 5, or 10 pieces. Order a single spring for a one-off repair or a multi-pack for production runs and spares inventory.
Uniform coil spacing across the active length ensures linear load-deflection behaviour, making these springs predictable in both manual and automated mechanisms.
Used in electronics, small appliances, automotive trim clips, medical devices, and DIY projects — wherever a compact stainless compression spring with a 1mm wire is needed.
| Material | 304 Stainless Steel |
|---|---|
| Wire Diameter | 1 mm (0.039 in) |
| Outer Diameter | 6 mm – 18 mm (0.24 – 0.71 in) — See variant options |
| Free Length | 10 mm – 305 mm (0.39 – 12.0 in) — See variant options |
| End Type | Closed & Ground |
| Spring Rate | See variant options |
| Surface Finish | Natural (uncoated stainless) |
| Pack Quantity | 1 / 5 / 10 pcs — See variant options |
| Coil Direction | Right-hand |
| Operating Temperature | –20 °C to +200 °C (–4 °F to +392 °F, typical for 304 SS) |
Measure the bore or housing your spring sits in — the outer diameter of the spring should be 0.5–1 mm smaller than the bore for a sliding fit. For free length, measure the uncompressed gap the spring must fill, then add the required travel (deflection) to find the minimum free length you need. Use the variant selector to match both dimensions.
With a 1mm wire diameter, these are light-duty compression springs suited for low-to-medium load applications such as latches, switches, small valves, and electronic enclosures. If your application requires a higher spring rate or heavier load capacity, consider a larger wire diameter. Contact us to confirm suitability for your specific load and deflection requirements.
304 stainless steel offers good resistance to atmospheric corrosion, fresh water, and mild chemicals. For marine or highly chlorinated environments, 316 stainless steel would be more appropriate. For typical outdoor DIY and light industrial use, 304 SS performs reliably without surface treatment.
These springs are dimensionally standard and fit any application that accepts a compression spring with a 1mm wire diameter. Common uses include small appliance mechanisms, electronics enclosure clips, automotive interior trim, medical device actuators, and custom DIY jigs. Always verify the outer diameter and free length match your housing before ordering.
Yes — for longer lengths (typically 120mm and above), single-piece (Qty 1) options are available. Shorter lengths are offered in packs of 5 or 10 for better value. Select your preferred wire/outer diameter and length combination, and the available quantity options will appear in the variant selector.
If you have the broken spring, measure its wire diameter (should be 1mm), outer diameter, and free length (the uncompressed length). Match those three dimensions to the variant options. If the spring is too damaged to measure, check the equipment's service manual or contact the manufacturer for the spring specification, then use our variant selector to find the matching size.
Free length is the overall length of the spring when no load is applied — this is the dimension listed in the variant options. Compressed length (solid height) is the length when all coils are touching under maximum load. For these 1mm wire springs, solid height is approximately equal to the number of total coils multiplied by the wire diameter (1mm). Always ensure your assembly has enough travel between free length and solid height for your required deflection.
