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When a worn or undersized spring causes your mechanism to lose tension, bind, or fail entirely, finding the right replacement fast is critical. Whether you are a home workshop enthusiast, a maintenance technician, or a small-batch manufacturer, these compression springs give you the exact size you need without ordering custom parts or waiting on bulk shipments.
Each spring is wound from 3mm wire diameter carbon steel, with outer diameters ranging from 16mm to 40mm (approximately 0.63 in to 1.57 in) and free lengths from 20mm to 200mm (approximately 0.79 in to 7.87 in). Springs are available in packs of 2 or 5 pieces depending on the selected variant, making it easy to stock spares or complete a repair in one order.
Typical use cases include compression spring replacement for drawer slides and cabinet mechanisms, load-bearing spring assemblies in light industrial equipment, and prototype or DIY spring-loaded jigs, fixtures, and tooling where a consistent return force is needed across repeated cycles.
| Wire Diameter | 3mm (0.118 in) |
|---|---|
| Outer Diameter Range | 16mm – 40mm (0.63 in – 1.57 in) |
| Free Length Range | 20mm – 200mm (0.79 in – 7.87 in) |
| Material | Carbon Steel |
| Spring Type | Compression |
| End Style | See variant options |
| Surface Finish | See variant options |
| Spring Rate | See variant options |
| Pack Quantity | 2 pcs or 5 pcs (see variant options) |
| Load Capacity | See variant options |
Measure the bore (inner housing) or shaft (guide rod) your spring will seat against. The spring's outer diameter should be slightly smaller than the bore to allow free movement, or slightly larger than the shaft if the spring rides over it. Use the Diameter option to select the outer diameter that fits your assembly.
Free length is the uncompressed length of the spring. Choose a free length that is longer than your required working length so the spring remains under slight preload when installed. As a starting point, select a free length roughly 20–30% longer than the compressed working height you need.
Spring strength (rate) depends on wire diameter, outer diameter, free length, and number of active coils. All variants use 3mm wire. Shorter springs with smaller diameters will generally have a higher spring rate. If you need a specific load value, contact us to confirm before ordering.
These springs are made from carbon steel, which provides good mechanical strength but limited corrosion resistance in wet or high-humidity environments. For outdoor or damp applications, consider applying a light coat of oil or grease, or contact us to ask about alternative material options.
These are general-purpose carbon steel compression springs suited for light industrial, DIY, and mechanical assembly use at ambient temperatures. They are not rated for high-temperature engine or exhaust environments. Contact us to confirm suitability if your application involves elevated heat or chemical exposure.
Larger diameter springs (typically 28mm and above) are sold in 2-piece packs due to their size and weight per unit. Smaller diameter variants are sold in 5-piece packs, giving you spares for future repairs or prototyping. The pack quantity is shown in the Length & Qty(pcs) option for each variant.
Check three dimensions: outer diameter (must clear the bore or fit over the shaft), free length (must suit your working travel), and wire diameter (3mm for all variants here). If you are replacing an existing spring, measure the old spring's outer diameter, free length, and wire thickness with calipers before selecting a variant.
