Get the power you need with RS PRO Extension Spring. Our heavy-duty extension spring is perfect for any application, no matter the load capacity or operating temperature. It's made of highly magnetic steel music wire for up to 510 newtons of force and can operate at high temperature. Plus, its oil finish is dry to the touch for extra corrosion resistance. Get the reliable performance you need with RS PRO Extension Spring!

Extension springs are coils attached by two components from both ends of the spring. When pulled apart the extension springs pull them back together again. The springs' tension can be adapted depending on the application load requirements.

Extension springs are often the least expensive part of your assemblies, failure can mean costly machine downtime and product rejects. To ensure quality and longer reliability RS PRO offer a range of steel extension springs with various spring rates and length to suit your application.

Materials to DIN17223 Class C or BS1408 CR3. Dimensions conform to DIN2097 Grade 2. Oiled finish.