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218CS - 4 Inch High Carbon Steel Extension Springs

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

The 218CS is a regular extension spring manufactured by Century Spring. It features machine hook ends and a zinc finish. This spring has a free length of 4 inches and an initial tension of 5 pounds. Made from High Carbon steel, it can withstand a maximum deflection of 2.4 inches and a maximum load of 27 pound force. With an outside diameter of 0.625 inches and a wire diameter of 0.08 inches, it has a spring rate of 8.9 inches per pound. The 218CS is a high-quality extension spring suitable for a variety of applications.

Century Spring takes pride in our fast shipping and extensive stock inventory. We understand the importance of getting the right springs quickly, which is why we offer reliable and efficient shipping services. Additionally, all our products, including the 218CS, are proudly made in the United States. With our commitment to quality and availability, Century Spring ensures that customers can easily obtain 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 5 lb
Length 4 in
Material High Carbon Steel
Outside Diameter 0.625 in
Part Type Standard
Rate 8.9 lbs/in
SKU 218CS
Sugg Max Deflection 2.4 in
Sugg Max Load 27 lbf
Wind Direction Left
Wire Diameter 0.08 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 2.27 kg
Length 101.6 mm
Material High Carbon Steel
Outside Diameter 15.88 mm
Part Type Standard
Rate 1.56 N/mm
SKU 218CS
Sugg Max Deflection 60.96 mm
Sugg Max Load 120.1 N
Wind Direction Left
Wire Diameter 2.03 mm