A coil spring can be wound in either a left hand or right hand direction, similar to a screw type thread. In applications such as one spring operating inside an­other, it is necessary to coil the springs so that the helices are in opposite directions, right and left. If a spring screws onto a thread, the direction of the helix should match that of the thread.

✦A left hand wound spring will spiral in the same direction as a Left Hand threaded screw.

✦A left hand wound spring will spiral in the same direction as a Left Hand threaded screw.