Torsion Springs (Twisting Springs) – Spiral design springs that use their torsional or rotational force. Torsion springs usually have ends that, when rotated or pivoted around a center, provide energy AND provide resistance to an external force. Torsion springs can be:

- With step
- No steps
- With different shape of the ends depending on the place of hanging
- With different direction (with left and right)

Standard DIN 2088