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When a worn or missing torsion spring causes clips, clamps, or hinged mechanisms to lose their grip, finding the right replacement in the correct size is critical. These clamp spring small torsion springs are designed for hobbyists, repair technicians, and mechanical assembly professionals who need dependable spring tension in compact form factors.
Available in two distinct size profiles — 8.3mm × 12.6mm (outer diameter × free length) and 0.5mm × 6mm × 2.5mm × 18mm (wire diameter × outer diameter × inner diameter × free length) — these torsion springs are manufactured from spring steel wire, typically with a wire diameter ranging from 0.5–1.0mm. Sold in convenient packs of 10, 30, 50, or 100 pieces.
Typical use cases include replacing broken clamp springs in binder clips and document clamps, restoring tension in small hinged enclosures and latch mechanisms, and sourcing bulk torsion springs for DIY electronics, hobby robotics, or light mechanical assemblies requiring consistent rotational force.
Choose between 8.3mm × 12.6mm or 0.5mm × 6mm × 2.5mm × 18mm to match your specific clamp or mechanism requirement exactly.
Made from spring steel wire for consistent elastic return force, maintaining tension through repeated compression and release cycles.
Surface treatment helps resist oxidation in typical indoor environments, extending service life in storage and light-duty applications.
Available in packs of 10, 30, 50, or 100 — order just what you need for a single repair or stock up for ongoing projects.
The small-profile torsion coil geometry delivers rotational spring force in tight spaces where larger springs cannot fit.
Fits a wide range of clamp, clip, and hinge applications — ideal for binder clip repair, hobby robotics, and light mechanical assemblies.
| Spring Type | Torsion / Clamp Spring |
|---|---|
| Size Option A | 8.3mm OD × 12.6mm Free Length |
| Size Option B | Wire Ø 0.5mm × OD 6mm × ID 2.5mm × Free Length 18mm |
| Wire Diameter | See variant options |
| Outer Diameter | See variant options |
| Free Length | See variant options |
| Material | Spring Steel |
| Finish | See variant options |
| Pack Quantity | 10 / 30 / 50 / 100 PCS |
| Application | Clamps, Binder Clips, Hinges, Light Mechanical Assemblies |
The 8.3mm × 12.6mm variant is identified by its outer diameter and free length, making it suitable for slightly larger clamp openings. The 0.5mm × 6mm × 2.5mm × 18mm variant specifies wire diameter, outer diameter, inner diameter, and free length — use this when you need to match a mandrel or shaft diameter precisely. Measure your existing spring or the housing bore before selecting.
Yes. These clamp springs are designed to replicate the tension profile of standard binder clip torsion springs. The spring steel construction provides the elastic return force needed to hold papers or cables securely under normal clamping loads.
The springs feature a surface finish that resists oxidation in typical indoor, dry environments. For outdoor or high-humidity applications, consider applying a light coat of machine oil after installation to extend service life.
The 0.5mm × 6mm × 2.5mm × 18mm variant has an inner diameter of 2.5mm, suitable for mandrels or pivot pins up to approximately 2.4mm. The 8.3mm × 12.6mm variant's inner diameter is not separately specified — contact us to confirm if you need an exact ID match.
Absolutely. The compact size and consistent spring force make these torsion springs well-suited for hobby robotics joints, small actuator return mechanisms, and DIY electronics enclosure latches where a reliable, repeatable spring action is needed.
For a single repair, the 10-piece pack is the most economical entry point. If you work on multiple devices or run a repair workshop, the 50- or 100-piece packs offer a lower per-unit cost and ensure you always have a replacement on hand without reordering frequently.
All packs contain springs of a single selected size. Each pack quantity (10, 30, 50, or 100) contains identical springs of the size you choose at checkout — they are not mixed-size assortments.
