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When a repair stalls because a tiny spring has lost its tension, or a prototype fails because the off-the-shelf spring is the wrong diameter, DIY makers, electronics hobbyists, and mechanical engineers all face the same frustration: finding the exact miniature compression spring they need. These 10pcs steel compression springs with wire diameters of 0.6mm and 0.7mm are stocked in a wide size matrix specifically to solve that problem.
Each pack contains 10 identical compression springs made from steel wire. Wire diameter options are 0.6mm and 0.7mm; outer diameter (OD) ranges from 4mm to 12mm (approximately 0.16–0.47 in); free length ranges from 5mm to 50mm (approximately 0.20–1.97 in). The format is wire diameter × outer diameter × free length (e.g., 0.6×6×20mm).
Typical use cases include replacing worn return springs in mechanical keyboards and switches, providing consistent preload in small electronic assemblies and sensor housings, acting as contact or ejector springs in jigs and fixtures, and serving as cushioning elements in miniature valve or latch mechanisms.
Wound from steel wire for consistent spring force and reliable return action across repeated compression cycles in mechanical and electronic applications.
Wire diameters of 0.6mm and 0.7mm combined with outer diameters from 4–12mm and free lengths from 5–50mm give you precise dimensional control for your specific application.
Each order ships 10 identical springs of your chosen size — enough for prototyping, repair stock, or small-batch production without over-ordering.
Compact dimensions (OD 4–12mm, length 5–50mm) make these springs suitable for tight spaces inside electronics enclosures, keyboard switches, and precision instruments.
Uniform wire diameter and coil pitch across each batch ensures repeatable deflection behaviour, important for applications where spring force tolerance matters.
Suitable for mechanical keyboards, sensor preload, valve return, jig ejectors, latch mechanisms, and general DIY repair — wherever a small compression spring is needed.
| Material | Steel wire |
|---|---|
| Wire Diameter | 0.6mm / 0.7mm (see variant options) |
| Outer Diameter (OD) | 4mm – 12mm (approx. 0.16–0.47 in) — see variant options |
| Free Length | 5mm – 50mm (approx. 0.20–1.97 in) — see variant options |
| Spring Type | Compression (open-coil, cylindrical) |
| Quantity per Pack | 10 pcs |
| Surface Finish | See variant options |
| Spring Rate | See variant options |
| End Type | See variant options |
| Operating Temperature | Contact us to confirm |
The three numbers represent: Wire Diameter × Outer Diameter × Free Length, all in millimetres. So 0.6×6×20mm means a spring wound from 0.6mm wire, with a 6mm outer diameter, and a 20mm free (uncompressed) length. Match all three dimensions to your application before ordering.
A thicker wire diameter (0.7mm vs 0.6mm) produces a stiffer spring with a higher spring rate for the same outer diameter and length. If you need more resistance or load-bearing capacity in a compact space, choose 0.7mm wire. For lighter-duty return or contact applications, 0.6mm wire is typically sufficient.
These springs are made from steel wire. Steel offers good mechanical properties for indoor and dry-environment applications. For environments with moisture, chemicals, or outdoor exposure, consider whether a coated or stainless steel spring would be more appropriate for your use case. Contact us to confirm surface treatment details for your chosen size.
These miniature compression springs are well-suited for mechanical keyboard switch return, sensor and probe preload, small valve and latch return mechanisms, jig and fixture ejectors, electronics enclosure contacts, and general DIY repair where a small cylindrical compression spring is required. The wide size range (OD 4–12mm, length 5–50mm) covers most common miniature spring applications.
Measure the bore or housing your spring must fit inside — the spring's outer diameter should be slightly smaller than the bore to allow free movement. For free length, measure the available space when the spring is uncompressed, then account for the compressed length your application requires. If you are replacing an existing spring, measure the original spring's wire diameter, outer diameter, and free length directly.
Yes. The small wire diameters (0.6–0.7mm) and compact outer diameters (4–12mm) make these springs appropriate for use inside electronics enclosures, keyboard switches, sensor housings, and precision instruments where space is limited and consistent spring force is needed. Verify the required spring rate and deflection range against your design specification before ordering.
Each listing is sold as a pack of 10 identical springs of your chosen size. This pack quantity is designed to cover prototyping, repair stock, and small-batch production needs. If you require larger quantities, please contact us to discuss bulk options.
