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When a worn or snapped torsion spring brings your project to a halt, finding the right replacement size quickly is the real challenge. Whether you are a home repair enthusiast, a mechanical hobbyist, or a maintenance technician, this assortment of torsion springs gives you the dimensional flexibility to match the exact specification your application demands — without ordering multiple separate items.
Each spring is wound from 1.8 mm wire diameter steel and is available across a range of outer diameters from 10 mm (0.39 in) to 20 mm (0.79 in). Coil counts of 3, 6, and 9 are offered per diameter group, with leg angles selectable from 60°, 90°, 120°, and 180°. Both left-hand and right-hand wind directions are stocked, covering the full range of rotational requirements.
Typical use cases include cabinet door hinges, small gate latches, tool return mechanisms, automotive interior clips, and light-duty machinery reset assemblies — anywhere a compact torsion spring with a defined leg angle is needed for consistent rotational return force.
Outer diameters from 10 mm to 20 mm (0.39–0.79 in) with 1.8 mm wire diameter across all sizes, covering a broad range of replacement and new-build needs.
Choose 3, 6, or 9 active coils per diameter to tune the spring rate and travel distance for your specific load and deflection requirements.
Leg angles of 60°, 90°, 120°, and 180° are available, allowing precise geometric fit into existing housings or custom assemblies without bending or modification.
Both left-hand (LH) and right-hand (RH) wound versions are stocked for every size combination, ensuring correct rotational direction for your mechanism.
All variants use 1.8 mm wire diameter, providing a predictable cross-section for torque calculations and straightforward like-for-like replacement sourcing.
Sized for cabinet hinges, gate latches, tool return springs, automotive interior clips, and light machinery reset assemblies across home and workshop environments.
| Wire Diameter | 1.8 mm |
|---|---|
| Outer Diameter Range | 10 mm – 20 mm (0.39 in – 0.79 in) |
| Available Outer Diameters | 10, 11, 12, 14, 15, 16, 18, 20 mm |
| Coil Count Options | 3 Coil / 6 Coil / 9 Coil |
| Leg Angle Options | 60° / 90° / 120° / 180° |
| Wind Direction | Left spring (LH) / Right spring (RH) |
| Material | See variant options |
| Surface Finish | See variant options |
| Spring Rate | See variant options |
| Free Angle | See variant options |
| Max Working Torque | See variant options |
Measure the inner bore or shaft diameter that the spring will wrap around, then select an outer diameter that provides adequate clearance. For a shaft of 8–9 mm, a 10 mm outer diameter spring is typically appropriate. Use calipers to measure the existing spring if you are replacing one, and match the outer diameter as closely as possible.
Wind direction determines which way the spring tightens under load. A left-hand (LH) spring coils counter-clockwise when viewed from the leg end; a right-hand (RH) spring coils clockwise. Using the wrong wind direction will cause the spring to unwind rather than store energy. Check your original spring or mechanism design to confirm which direction is required before ordering.
More coils generally mean a lower spring rate (softer spring) and greater angular deflection capacity for the same wire and diameter. A 3-coil spring will be stiffer and deflect less before reaching its elastic limit, while a 9-coil spring of the same diameter and wire will be more compliant and allow greater rotation. Choose based on the torque and travel your mechanism requires.
The leg angle is the angle between the two straight legs of the spring in its free (unloaded) state. Select the angle that matches your housing geometry or the angle at which the legs need to rest when the mechanism is in its neutral position. If you are replacing an existing spring, measure the angle between the legs with a protractor before ordering.
The surface finish and material specification vary by variant — please refer to the variant options or contact us to confirm the finish for your selected size. For outdoor or high-humidity applications, consider applying a light coating of corrosion-inhibiting grease after installation to extend service life.
These springs are sized for light-to-medium duty applications such as cabinet hardware, automotive interior components, tool return mechanisms, and small gate latches. Garage door torsion springs operate under significantly higher loads and require springs specifically rated for that application. We recommend consulting a qualified technician for garage door spring replacement.
Spring rate for torsion springs is expressed in N·mm/degree or lb·in/degree and depends on wire diameter, outer diameter, coil count, and material modulus. If you need a specific spring rate, please contact us with your wire diameter, outer diameter, coil count, and material requirements so we can provide the calculated rate for your selected variant.
