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When a mechanism fails because a torsion spring snaps or loses its set, sourcing an exact replacement quickly becomes a frustrating hunt. Engineers, maintenance technicians, and serious DIYers who need a dependable rotational-force component in compact assemblies will find this pack of 10 torsion springs a practical, cost-effective solution.
Each spring is wound from 2mm (0.079 in) round wire in a right-hand helix. Outer diameter options span 10–20mm (0.39–0.79 in), with active coil counts from 3 to 9 and leg angles of 60°, 90°, 120°, or 180°. The inner diameter varies by OD selection — typically 6–16mm (0.24–0.63 in) depending on the variant chosen.
Typical use cases include garage door hardware replacement, automotive hood and trunk lid mechanisms, industrial cam-and-follower assemblies, and custom jig or fixture builds where a compact right-hand torsion spring is required.
Consistent 2mm (0.079 in) round wire cross-section across all variants for predictable spring rate and torque output.
Eight outer diameter options from 10mm to 20mm (0.39–0.79 in) let you match the spring to your shaft or housing bore precisely.
Right-hand wound coil body suits the majority of standard rotational mechanisms and is the most common replacement orientation.
Choose 60°, 90°, 120°, or 180° leg angles to match your existing geometry without bending or modifying the legs on-site.
Each variant ships as a pack of 10 identical springs — ideal for batch repairs, production runs, or keeping spares on hand.
Seven coil count options allow fine-tuning of spring rate and free-body length to suit compact or extended travel applications.
| Wire Diameter | 2mm (0.079 in) |
|---|---|
| Outer Diameter Range | 10–20mm (0.39–0.79 in) — see variant options |
| Inner Diameter Range | Typically 6–16mm (0.24–0.63 in) — see variant options |
| Number of Active Coils | 3, 4, 5, 6, 7, 8, or 9 — see variant options |
| Leg Angle | 60°, 90°, 120°, or 180° — see variant options |
| Wind Direction | Right-hand |
| Material | See variant options |
| Surface Finish | See variant options |
| Pack Quantity | 10 pieces per pack |
| Body Length (free) | See variant options |
Measure the shaft or mandrel the spring will sit on and the bore of the housing it fits inside. The spring's inner diameter should be slightly larger than the shaft (typically 0.1–0.3mm clearance), and the outer diameter should clear the housing bore. Select the OD variant closest to your requirement from the 10–20mm range available.
The leg angle is the angular position of the two straight legs relative to each other in the spring's free (unloaded) state. A 90° spring has legs at a right angle; a 180° spring has legs pointing in opposite directions. Match this to the geometry of your mechanism's mounting points to avoid pre-loading or under-loading the spring at assembly.
More active coils generally produce a lower spring rate (softer) and a longer free body length. Fewer coils give a stiffer spring in a shorter package. If you are replacing an existing spring, count the active coils on the original. If designing from scratch, calculate the required torque and deflection angle to determine the ideal coil count.
Surface finish and material details are listed per variant. For outdoor or high-humidity environments, confirm the finish specification before ordering. If corrosion resistance is critical, contact us to confirm the coating or material grade for your selected variant.
No — wind direction is not interchangeable. A right-hand spring tightens (winds up) when torque is applied in one direction and unwinds in the other. Using the wrong wind direction will cause the spring to unwind under load rather than store energy, which can damage the mechanism. Always match the wind direction to your original specification.
Spring rate depends on wire diameter, coil diameter, and number of active coils. With a fixed 2mm wire diameter, the rate varies across the OD and coil count combinations available. If you need a specific torque-per-degree value, contact us with your OD and coil count selection and we can provide the calculated spring rate.
Yes. Each pack contains 10 identical springs matching the exact Wire dia × Outer dia, Number of coils, and Angle combination you select. If you need multiple different specifications, add each variant to your cart separately.
These compact 2mm wire torsion springs are used in garage door hardware, automotive hood and trunk lid mechanisms, industrial cam-and-follower assemblies, electronic enclosure latches, custom jigs and fixtures, and general mechanical engineering prototypes where a right-hand torsion spring in the 10–20mm OD range is required.
