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When a worn or undersized spring causes equipment to underperform, rattle, or fail entirely, finding an exact replacement wastes hours. DIYers, engineers, and maintenance technicians who need a dependable compression spring in a specific wire diameter and outer diameter can stop searching — this range covers wire diameters from 1.5 mm to 2.0 mm and outer diameters from 10 mm to 25 mm, with body lengths from 60 mm (2.36 in) to 100 mm (3.94 in).
Each spring is formed from 304 stainless steel wire, cold-wound and stress-relieved for consistent spring rate and fatigue resistance. Wire diameters span 1.5 mm, 1.6 mm, 1.8 mm, and 2.0 mm; outer diameters range from 10 mm (0.39 in) to 25 mm (0.98 in); free lengths run 60 mm, 70 mm, 80 mm, 90 mm, and 100 mm. Ends are closed and ground for flat, stable seating.
Typical applications include replacement compression springs for drawer slides and cabinet mechanisms, pressure springs in jigs and fixtures for woodworking or metalworking, and return springs in light industrial automation, valve assemblies, and DIY mechanical projects requiring a corrosion-resistant stainless steel compression spring.
| Material | 304 Stainless Steel |
|---|---|
| Wire Diameter | See variant options (1.5 / 1.6 / 1.8 / 2.0 mm) |
| Outer Diameter (OD) | See variant options (10–25 mm) |
| Free Length | See variant options (60 / 70 / 80 / 90 / 100 mm) |
| End Type | Closed and Ground |
| Wind Direction | Right-hand |
| Spring Rate | See variant options |
| Surface Finish | Bright (natural stainless) |
| Quantity per Pack | See variant options (1 PCS or 2 PCS) |
| Application Type | General mechanical, DIY, light industrial |
Match three key dimensions to your application: free length (the uncompressed length — 60 to 100 mm here), outer diameter (must fit inside your spring pocket or bore — 10 to 25 mm here), and wire diameter (determines stiffness — 1.5 to 2.0 mm here). If you are replacing an existing spring, measure the old one with calipers. If designing from scratch, calculate the required spring rate (load divided by deflection) and select the wire and OD combination that meets it.
Load capacity depends on wire diameter, outer diameter, free length, and number of active coils. Heavier wire (e.g., 2.0 mm) and smaller outer diameter produce a stiffer spring; lighter wire (e.g., 1.5 mm) and larger outer diameter produce a softer spring. For precise load requirements, contact us with your target load and deflection values and we can help identify the correct variant.
304 stainless steel offers strong resistance to oxidation and atmospheric corrosion, including exposure to moisture and many mild chemicals. It is not fully immune to chloride-rich environments such as saltwater immersion, where 316 stainless would be preferred. For most indoor mechanical, workshop, and light outdoor DIY uses, 304 stainless steel compression springs perform reliably without surface treatment.
Closed ends means the final coil is wound tightly against the adjacent coil, reducing the active coil count and providing a more stable base. Ground ends means the closed coil is machined flat and perpendicular to the spring axis. Together, these features ensure the spring seats squarely in a pocket or against a plate, preventing tipping or lateral buckling under load — important for accurate, repeatable force application.
Yes, for most outdoor and damp environments. 304 stainless steel resists rain, humidity, and general atmospheric exposure without rusting. Avoid prolonged submersion in saltwater or exposure to strong acids or chlorides, which can cause pitting corrosion over time. For marine or highly corrosive environments, consider 316 stainless steel springs instead.
The 1 PCS option ships a single spring — ideal when you need one replacement or are testing a size before buying more. The 2 PCS option ships two identical springs at a lower per-unit cost — useful when you need a matched pair for bilateral mechanisms or want a spare on hand. Both options are the same spring; only the pack quantity differs.
Use digital calipers for accuracy. Measure: (1) Free length — the total uncompressed length end-to-end; (2) Outer diameter — across the widest point of the coil; (3) Wire diameter — the thickness of the wire itself. Cross-reference these three measurements against the variant options (Length x Wire Dia x Outer Dia) to find your match. If your spring is slightly compressed in its resting position, add the compressed amount to get the true free length.
