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When a worn-out spring causes a mechanism to fail — whether it's a pen clip, a sensor contact, or a miniature valve — finding the exact replacement can be frustrating. These 0.6mm wire diameter stainless compression springs are designed for engineers, hobbyists, and repair technicians who need reliable small-load spring force in a compact, corrosion-resistant form.
Each spring is formed from stainless steel wire with a nominal wire diameter of 0.6mm (0.024 in). Outer diameters span 4mm to 12mm (approx. 0.16–0.47 in), and free lengths range from 5mm to 305mm (approx. 0.20–12.0 in). Springs are sold in packs of 1, 2, 5, or 10 pieces depending on the selected length variant.
Typical use cases include DIY electronics spring contacts, small appliance repair requiring a 0.6mm wire compression spring replacement, precision instrument mechanisms, pen and stylus assemblies, and light-duty latch or valve return springs in hobby robotics projects.
Made from stainless steel wire for corrosion resistance in humid, wet, or mildly acidic environments — ideal for long-term reliability in exposed assemblies.
Consistent 0.6mm wire cross-section ensures repeatable spring force and dimensional accuracy across all outer diameter and length variants.
Choose from outer diameters of 4, 5, 6, 7, 8, 9, 10, or 12mm and free lengths from 5mm to 305mm — covering a broad spectrum of small-load spring needs.
Available in packs of 1, 2, 5, or 10 pieces. Shorter lengths ship in larger packs; longer lengths in smaller packs — matched to practical usage quantities.
Dimensionally consistent for use as a direct replacement spring in consumer electronics, small appliances, pens, latches, and light mechanical assemblies.
Compact size and standard coil geometry make these springs easy to integrate into custom fixtures, 3D-printed housings, and prototype mechanisms without modification.
| Wire Diameter | 0.6mm (0.024 in) |
|---|---|
| Outer Diameter (OD) | 4mm / 5mm / 6mm / 7mm / 8mm / 9mm / 10mm / 12mm — See variant options |
| Inner Diameter (ID) | See variant options (OD minus 2× wire dia) |
| Free Length | 5mm – 305mm — See variant options |
| Material | Stainless Steel |
| Spring Type | Compression (closed ends, not ground) |
| Coil Direction | Right-hand wound (standard) |
| Surface Finish | Natural stainless (no coating) |
| Pack Quantity | 1 / 2 / 5 / 10 pieces — See variant options |
| Spring Rate | See variant options / Contact us to confirm |
| Max Load | See variant options / Contact us to confirm |
Measure the bore or housing your spring sits in — the spring's outer diameter should be slightly smaller than the bore (typically 0.2–0.5mm clearance). For free length, measure the uncompressed gap the spring needs to fill, then add 10–20% to allow for preload. Use the variant selector to match OD and length to your measured values.
Spring rate depends on wire diameter, outer diameter, free length, and number of active coils. Because this listing covers multiple OD and length combinations, the spring rate varies by variant. If you need a specific spring rate (N/mm or lbf/in), please contact us with your OD and length selection and we can provide an estimate or direct you to the closest match.
Yes. These springs are made from stainless steel, which provides good resistance to rust and oxidation in humid, wet, and mildly corrosive environments. They are suitable for outdoor use in moderate conditions. For highly aggressive chemical environments (strong acids, chlorides), please confirm material grade compatibility with your application.
These springs follow standard coil geometry with a 0.6mm wire diameter and right-hand winding, making them compatible with most pen clips, stylus assemblies, small latch mechanisms, and sensor contacts that use springs in the 4–12mm OD range. Always verify the free length and OD against your existing spring before ordering.
Pack quantity is determined by the selected length variant. Shorter springs (5–50mm) are available in packs of 10; medium lengths (60–100mm) in packs of 5; longer springs (120–200mm) in packs of 2; and the longest variants (300–305mm) are sold individually (1 piece). Select the length and amount combination that matches your project needs.
Yes, these are designed as replacement compression springs. To find the correct replacement, measure the wire diameter (should be 0.6mm), outer diameter, and free length of your original spring. Match those measurements to the available variants. If your original spring is slightly compressed in its resting position, measure the free (unloaded) length for an accurate match.
Yes. The 0.6mm wire diameter and small OD options (4–6mm) make these suitable for PCB spring contacts, battery terminals, and probe pin assemblies where a compact, low-force compression spring is needed. Stainless steel also provides adequate electrical conductivity for low-current contact applications.
