This RS PRO steel extension spring absorbs and stores the energy of pulling forces between components. Use it to keep two different items together – attached or closed.
The spring has two looped hooks so you can easily attach objects at both ends of it without having to bend or shape it as desired. You can be assured that the high-tensile piano wire, which consists of high-carbon steel, is extremely strong and can hold heavy loads while absorbing extreme pulling forces at the same time. This makes it appropriate for use with heavy-duty applications.
Its RoHS (Restriction of Hazardous Substances) certification means this extension spring contains only minimal amounts of any harmful materials. You can use the product on garage doors, trampolines and machinery in domestic and commercial settings.

• Free length of 25 mm
• Initial tension of 6.48 N (Newtons)
• Steel material
• Maximum extended length of 80.80 mm
• Outside diameter of 5 mm
• Spring rate of 0.11 N/mm
• Wire diameter of 0.45 mm