Metal Extension Springs, For Industrial Use, Certification : ISI Certified

Extension Springs are Helical Springs designed to store Energy and resist Pulling Force. The Spring used on a Screen Door is good example of the most common Extension Spring. Extension Springs must have a means for attaching them to components in your device or assembly. Ends can be Loops, Hooks, Threaded Inserts or Swivels. The end configurations on Extension Springs are unlimited but always perform the same basic function. Position of ends can be random or can be designed with specific orientation to each other and to the Extension Spring body. Stress present on Loops can be higher than those on Extension Spring body.