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621CS - 8 Inch High Carbon Steel Extension Springs

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

The 621CS 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 0.207 inches, an outside diameter of 2 inches, and a free length of 8 inches. It has an initial tension of 22 Pound and a maximum deflection of 5.4 inches. The 621CS has a spring rate of 18 lbs/inch and a maximum load of 120 Pound Force. It features machine hook ends and is suitable for various extension spring applications.

At Century Spring, we understand the importance of fast shipping and having a wide range of stock available. That's why we pride ourselves on our efficient shipping process and our significant inventory. We want to ensure that our customers have access to the springs they need as quickly as possible. Additionally, all of our products, including the 621CS, are proudly made in the United States. You can trust Century Spring for reliable, high-quality springs that meet your specific requirements.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 22 lb
Length 8 in
Material High Carbon Steel
Outside Diameter 2 in
Part Type Standard
Rate 18 lbs/in
SKU 621CS
Sugg Max Deflection 5.4 in
Sugg Max Load 120 lbf
Wind Direction Left
Wire Diameter 0.207 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 9.98 kg
Length 203.2 mm
Material High Carbon Steel
Outside Diameter 50.8 mm
Part Type Standard
Rate 3.15 N/mm
SKU 621CS
Sugg Max Deflection 137.16 mm
Sugg Max Load 533.76 N
Wind Direction Left
Wire Diameter 5.26 mm