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When a cabinet door won't stay shut, a hinge loses its snap, or a custom mechanism needs reliable return force, the culprit is almost always a worn or incorrectly sized torsion spring. Engineers, makers, and home-improvement enthusiasts who need a torsion spring with a 2mm wire diameter and outer diameters spanning 10–20mm will find this range covers the most common residential and light-industrial applications.
Each torsion spring in this listing is wound from 2mm carbon-steel wire. Outer diameters run from 10mm (~0.39 in) to 20mm (~0.79 in), and body lengths vary with coil count — 3-coil bodies are the most compact, 6-coil bodies offer a mid-range stroke, and 9-coil bodies deliver the longest angular travel. Leg angles are available in 60°, 90°, 120°, and 180°, and each size ships as either a left-hand (LH) or right-hand (RH) wound spring.
Typical use cases include cabinet-door return mechanisms, small gate latches, appliance lid hinges, 3D-printer extruder arms, and custom jig fixtures — anywhere a compact torsion spring with a defined leg angle is needed to store and release rotational energy reliably.
OD from 10mm to 20mm, coil counts of 3, 6, or 9 — 24 dimensional combinations to match your exact space envelope.
Consistent 2mm wire diameter delivers predictable spring rate and fatigue life across the full OD range.
60°, 90°, 120°, and 180° leg configurations let you match the spring geometry to your pivot point without bending legs on-site.
Both LH and RH versions available — critical for correct torque direction in your assembly.
Springs are finished to resist surface oxidation in typical indoor environments, extending service life in cabinets, appliances, and enclosures.
Each variant is sold individually (×1), so you can order exactly the quantity you need without buying in bulk.
| Wire Diameter | 2 mm (0.079 in) |
|---|---|
| Outer Diameter (OD) | 10 mm – 20 mm (0.39 in – 0.79 in) |
| Inner Diameter (ID) | OD − 4 mm (varies by OD selected) |
| Coil Count | 3 / 6 / 9 coils (see variant options) |
| Leg Angle | 60° / 90° / 120° / 180° (see variant options) |
| Wind Direction | Left-hand (LH) / Right-hand (RH) |
| Material | Carbon steel |
| Finish | See variant options |
| Spring Rate | See variant options |
| Free Angle | See variant options |
| Quantity per Order | 1 piece |
Measure the shaft or mandrel the spring will wrap around. The spring's inner diameter (ID = OD − 4mm for 2mm wire) should be slightly larger than the shaft diameter to allow free rotation. For example, a 10mm OD spring has an ID of approximately 6mm, suitable for shafts up to ~5.5mm.
Wind direction determines which way the spring tightens when torque is applied. A left-hand (LH) spring coils counter-clockwise when viewed from the front; a right-hand (RH) spring coils clockwise. Using the wrong hand will cause the spring to unwind rather than store energy — always confirm the rotation direction of your mechanism before ordering.
The leg angle is the angle between the two straight legs of the spring in its free (unloaded) state. Select the angle that matches the geometry of your pivot assembly. A 90° spring is the most common for cabinet hinges; 180° suits applications where both legs need to point in opposite directions. If your design requires a custom angle, choose the nearest standard option and adjust your mounting geometry accordingly.
More coils mean a longer active body length and a lower spring rate (softer feel) for the same wire diameter and OD. A 3-coil spring is stiffer and more compact; a 9-coil spring is more flexible and provides greater angular travel before reaching its load limit. Choose based on the angular deflection and force required by your application.
These springs are finished for typical indoor environments. For outdoor or high-humidity applications, consider applying a corrosion-inhibiting coating or lubricant after installation, or contact us to confirm suitability for your specific environment.
Yes — measure the wire diameter, outer diameter, coil count, leg angle, and wind direction of your existing spring, then select the matching variant from this listing. If your existing spring has a non-standard leg angle (e.g., 45° or 135°), choose the nearest available option and adjust your mounting bracket if needed.
Maximum torque capacity depends on the specific OD and coil count selected. As a conservative guide, 2mm wire torsion springs in this OD range typically handle torques from approximately 0.05 N·m (small 3-coil, 10mm OD) up to 0.3 N·m (9-coil, 20mm OD). Contact us to confirm load ratings for your specific variant.
