The extension springs have been used in the industries of automotive Interiors, Industrial equipment, brake springs, appliance devices, toys, garage doors, automatic washing machines and various types of spring tensioning devices. This type of spring is most often produced using round wire. Lead Spring-produced extension spring ends include threaded inserts, extended twist loops, cross loops, hooks, expanded eyes, reduced eyes, rectangular ends and teardrop-shaped ends, which can all be produced to vary in distance from the spring body. Diameters of our products range from 0.2mm to 12.0mm.Our production capabilities for extension springs fill almost any client need, from a standard cross center hook to a special purpose extension spring such as a stove spring, used on oven doors, with extended hook ends. We can customize any extension spring to fit your project.