Made of stainless steel, these springs are more corrosion resistant than steel springs. They're also easier to rotate than steel springs. Found in clothespins, spring clamps, and mousetraps, torsion springs wrap around a shaft or rod to maintain pressure on objects as they rotate.

Torsion springs should be used in the direction in which the coils are wound.

Rotating a torsion spring tightens the spring around a shaft and increases the spring length. Using a shaft with a larger diameter than the values listed for maximum shaft diameter will interfere with the spring’s motion.