Applied to rotational return and angular control mechanisms, storing and releasing torque via dual straight legs to deliver precise restoring force for pivot and hinge structures.

Precision cold-wound from high-quality carbon steel or stainless steel wire, the dual straight legs can be customized to any required angle (commonly 90°, 180°, etc.) based on installation requirements. The tightly closed coil body ensures linear stability of torque output. Zinc plating provides effective corrosion protection. Leg length and angle are fully customizable per customer drawings to accommodate different rotation strokes and assembly orientations, making this spring ideal for push-button switches, door hinges, clamps, and other precision torque applications.