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612CS - 8 Inch High Carbon Steel Extension Springs

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

The 612CS 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 0.225 inches, an outside diameter of 1.312 inches, and a free length of 8 inches. It has an initial tension of 85 Pound and a maximum deflection of 1.7 inches. The 612CS has a spring rate of 102 inches per pound and a maximum load of 255 Pound Force. It has machine hook ends, making it easy to attach and use in various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of getting your springs quickly to keep your projects on track. That's why we ensure prompt delivery so you can receive your order in a timely manner. Additionally, all our springs, including the 612CS, are proudly made in the United States. We prioritize quality and craftsmanship, providing you with reliable and durable springs for your specific needs. Trust Century Spring for all your spring requirements.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 85 lb
Length 8 in
Material High Carbon Steel
Outside Diameter 1.312 in
Part Type Standard
Rate 102 lbs/in
SKU 612CS
Sugg Max Deflection 1.7 in
Sugg Max Load 255 lbf
Wind Direction Left
Wire Diameter 0.225 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 38.55 kg
Length 203.2 mm
Material High Carbon Steel
Outside Diameter 33.32 mm
Part Type Standard
Rate 17.86 N/mm
SKU 612CS
Sugg Max Deflection 43.18 mm
Sugg Max Load 1134.24 N
Wind Direction Left
Wire Diameter 5.72 mm