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580CS - 2.13 Inch Spring Steel Extension Springs

The 580CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a zinc finish. This spring has a wire diameter of 0.051 inches, an outside diameter of 0.375 inches, and a free length of 2.13 inches. It has an initial tension of 3 Pound and a maximum deflection of 1.1 inches. The 580CS has a spring rate of 8.9 inches per pound and a maximum load of 12 Pound Force. It features machine hook ends and is suitable for various extension spring applications.

At Century Spring, we pride ourselves on fast shipping and a significant stock inventory. Our products, including the 580CS, are proudly made in the United States. With our efficient shipping process and ample supply, Century Spring ensures that customers can quickly receive the springs they need for their projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 3 lb
Length 2.13 in
Material Spring Steel
Outside Diameter 0.375 in
Part Type Standard
Rate 8.9 lbs/in
SKU 580CS
Sugg Max Deflection 1.1 in
Sugg Max Load 12 lbf
Wind Direction Left
Wire Diameter 0.051 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1.36 kg
Length 54.1 mm
Material Spring Steel
Outside Diameter 9.53 mm
Part Type Standard
Rate 1.56 N/mm
SKU 580CS
Sugg Max Deflection 27.94 mm
Sugg Max Load 53.38 N
Wind Direction Left
Wire Diameter 1.3 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.85
50 - 149 $2.71
150 - 299 $2.57
300 - 499 $2.43
500 - 749 $2.14
750 - 999 $1.86
1000+ Call for price