Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When your mechanical project demands consistent return force and precise dimensional control, finding the right compression spring can be frustrating. Engineers, hobbyists, and repair technicians who work with small-scale assemblies need springs that hold their rated load cycle after cycle without permanent set. This listing is designed for makers and professionals who require a compact, multi-size compression spring solution they can trust.
Each pack contains 5 compression springs wound from 1.2 mm wire diameter steel. Outer diameters span 10 mm to 20 mm (approx. 0.39 in to 0.79 in) and free lengths range from 60 mm to 100 mm (approx. 2.36 in to 3.94 in). Select your exact outer diameter and free length combination from the variant options above to match your application.
These compression springs are well-suited for DIY mechanical linkages, 3D-printer bed leveling assemblies, RC vehicle suspension tuning, electronic enclosure latches, and light-duty industrial jigs where a reliable restoring force is needed in a compact envelope.
| Wire Diameter | 1.2 mm (0.047 in) |
|---|---|
| Outer Diameter | See variant options (10 / 11 / 12 / 13 / 14 / 16 / 18 / 20 mm) |
| Free Length | See variant options (60 / 70 / 80 / 90 / 100 mm) |
| Spring Rate | See variant options |
| End Type | Closed ends (typical) |
| Coil Direction | Right-hand wound |
| Material | Steel (corrosion-resistant finish) |
| Pack Quantity | 5 pieces per pack |
| Max Load Capacity | See variant options |
Measure the inner diameter of the bore or housing where the spring will sit. The spring's outer diameter should be slightly smaller than the bore to allow free movement without binding. For guide-rod applications, the spring's inner diameter (outer diameter minus twice the wire diameter) should be slightly larger than the rod.
The inner diameter equals the outer diameter minus twice the wire diameter (1.2 mm × 2 = 2.4 mm). For example, a 10 mm OD spring has an approximate inner diameter of 7.6 mm. Use this to check guide-rod clearance for your chosen variant.
These are light-to-medium duty compression springs suited for applications such as electronic enclosure latches, 3D-printer bed leveling, RC suspension, and small mechanical linkages. For heavy industrial loads or safety-critical applications, please contact us to confirm the spring rate and load capacity of your selected variant before ordering.
The springs feature a corrosion-resistant surface treatment suitable for typical indoor environments and light-outdoor use. For applications involving prolonged moisture exposure, chemical contact, or marine environments, consider additional protective measures or contact us to discuss material options.
Yes. The 10–20 mm outer diameter range and 60–100 mm free length range make these springs a popular choice for 3D-printer bed leveling assemblies, robotic gripper return mechanisms, and small actuator reset functions. Select the variant whose dimensions best match your design's spring pocket and required travel.
The free length is the spring's uncompressed length. Choose a free length that, when compressed to your working length, stays within the spring's elastic range (typically no more than 70–80% compression of free length). If you need help calculating working load vs. deflection, contact us with your application details.
Each listing provides a 5-piece pack. If you require larger quantities for production or wholesale purposes, please contact us directly through the store's contact page and we will be happy to discuss volume options.
