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615CS - 16 Inch High Carbon Steel Extension Springs

The 615CS is a regular extension spring manufactured by Century Spring. It is made from High Carbon steel and has a zinc finish. This spring has a wire diameter of 0.105 inches, an outside diameter of 1.125 inches, and a free length of 16 inches. It has an initial tension of 5 Pound and a maximum deflection of 22 inches. The 615CS has a maximum load of 31 Pound Force and a spring rate of 1.2 inches per pound. It features machine hook ends and is suitable for various extension spring applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand that time is of the essence, which is why we strive to quickly deliver our products, including the 615CS, to our customers. Additionally, our springs are proudly made in the United States, ensuring high quality and supporting local manufacturing. With our efficient shipping and ample supply, you can trust Century Spring to provide the springs you need for your projects in a timely manner.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 5 lb
Length 16 in
Material High Carbon Steel
Outside Diameter 1.125 in
Part Type Standard
Rate 1.2 lbs/in
SKU 615CS
Sugg Max Deflection 22 in
Sugg Max Load 31 lbf
Wind Direction Left
Wire Diameter 0.105 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 2.27 kg
Length 406.4 mm
Material High Carbon Steel
Outside Diameter 28.58 mm
Part Type Standard
Rate 0.21 N/mm
SKU 615CS
Sugg Max Deflection 558.8 mm
Sugg Max Load 137.89 N
Wind Direction Left
Wire Diameter 2.67 mm
Inventory Status
Low Stock
Quantity Price
1 - 49 $18.71
50 - 149 $17.78
150 - 299 $16.84
300 - 499 $15.91
500 - 749 $14.04
750 - 999 $12.17
1000+ Call for price