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When a worn or undersized torsion spring causes a mechanism to fail — a cabinet door that won't stay closed, a hinge that snaps back too hard, or a tool that loses its return tension — finding the right replacement quickly matters. These torsion springs are designed for engineers, technicians, and hands-on DIYers who need a precise, configurable spring without waiting on custom orders.
Each spring is wound from 1.6mm carbon steel wire, with outer diameters ranging from 8mm to 20mm (approx. 0.31" to 0.79") and coil counts of 3, 6, or 9 turns. Angle selections of 60°, 90°, 120°, and 180° are available, in both left-hand and right-hand wind orientations. The compact wire diameter delivers firm rotational resistance suited to light-to-medium duty applications.
Typical use cases include cabinet and furniture hinges requiring consistent return force, automotive interior mechanisms such as glove box latches and seat adjustment levers, and small appliance or tool assemblies where a torsion spring replacement for DIY repair is needed. The wide size assortment also makes this listing useful for workshop stock and prototyping.
Outer diameters from 8mm to 20mm (0.31"–0.79") with 1.6mm wire diameter across all variants.
Choose from 60°, 90°, 120°, or 180° leg angles to match your mechanism's geometry precisely.
Both left-spring and right-spring orientations available — select the correct wind direction for your application.
3, 6, or 9 active coils per variant — more coils provide greater angular deflection capacity.
Wound from carbon steel wire for firm, consistent rotational force in light-to-medium duty assemblies.
Each listing is for one spring. Select your exact wire dia × outer dia × coil count, angle, and hand orientation above.
| Wire Diameter | 1.6 mm (0.063") |
|---|---|
| Outer Diameter Range | 8 mm – 20 mm (0.31" – 0.79") |
| Active Coil Options | 3 Coil / 6 Coil / 9 Coil |
| Leg Angle Options | 60° / 90° / 120° / 180° |
| Wind Direction | Left spring / Right spring |
| Material | Carbon steel |
| Finish | See variant options |
| Inner Diameter | See variant options |
| Free Angle | See variant options |
| Spring Rate | See variant options |
| Unit Sold | 1 piece per order |
Measure the mandrel or shaft the spring will wrap around. The spring's inner diameter must be slightly larger than the shaft diameter to allow free rotation. The outer diameter listed is the coil's outside measurement — subtract twice the wire diameter (2 × 1.6mm = 3.2mm) to estimate the inner diameter for each variant.
Wind direction determines which way the spring tightens under load. A left-hand (left spring) winds counterclockwise when viewed from the leg end; a right-hand (right spring) winds clockwise. To identify which you need, look at the original spring or consult your mechanism's service manual. Using the wrong hand will cause the spring to unwind rather than store energy.
The leg angle is the angle between the two straight legs of the torsion spring in its free (unloaded) state. A 90° spring has legs at a right angle; a 180° spring has legs pointing in opposite directions. Match this angle to the geometry of your hinge, latch, or mechanism to ensure the spring operates within its designed deflection range.
More active coils allow greater angular deflection before the spring reaches its stress limit, and generally result in a lower spring rate (softer feel per degree of rotation). Choose 3 coils for compact spaces with limited travel, 6 coils for moderate deflection, and 9 coils when you need maximum angular travel or a softer return force in the same outer diameter.
These springs are made from carbon steel and are intended for indoor or protected environments. Prolonged exposure to moisture, salt spray, or chemicals may cause surface oxidation over time. For outdoor or corrosive applications, consider stainless steel torsion springs or apply a protective coating after installation.
These springs can serve as replacements when the wire diameter (1.6mm), outer diameter, coil count, leg angle, and wind direction match the original specification. Always verify all five parameters against your original spring or equipment service documentation before ordering. If you are unsure, contact us with your original spring's measurements and we can help confirm compatibility.
Common applications include cabinet and furniture hinges, automotive interior latches (glove boxes, armrests, seat mechanisms), small appliance return mechanisms, tool spring replacements, and prototyping or workshop stock. The 8–20mm outer diameter range covers a broad range of light-to-medium duty consumer and light industrial assemblies.
