Product description:
Model: Extension Spring with Loop Ends
Material: Spring steel
Length: 300mm without ring
Wire diameter: 0.3mm - 6mm
Outer diameter: 3mm - 50mm
Size: For example: 0.5x4x300mm; it means that the wire diameter is 0.5 mm, the spring outer diameter is 4 mm, and the length is 300 mm(Length does not include loop)
Note: There are positive and negative tolerances for dimensions.

Tip: This store also has the other sizes and material of springs, customers who need it can contact customer service for consultation.

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. 

 

Package include:
According to your choice!