These steel springs meet MS24586 and come with a traceable lot number and material test report. Made of cadmium-plated steel, they have mild corrosion resistance. All have aligned loop ends.

As you stretch an extension spring, it gets harder to pull. Minimum load is the amount of force required to start to extend the spring. Maximum load is the amount of force required to fully extend the spring. Spring rate is the amount of force required for every inch of extension.

For technical drawings and 3-D models, click on a part number.