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601CS - 8.50 Inch High Carbon Steel Extension Springs

The 601CS 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 0.148 inches, an outside diameter of 1.125 inches, and a free length of 8.5 inches. It has an initial tension of 20 Pound and a maximum deflection of 4.4 inches. The 601CS has a spring rate of 15 inches per pound and a maximum load of 87 Pound Force. It features machine hooks on both ends. The 601CS is a reliable extension spring suitable for various applications.

Century Spring offers fast shipping and maintains a significant stock inventory. We are proud to manufacture our products, including the 601CS, in the United States. With our efficient shipping 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 20 lb
Length 8.5 in
Material High Carbon Steel
Outside Diameter 1.125 in
Part Type Standard
Rate 15 lbs/in
SKU 601CS
Sugg Max Deflection 4.4 in
Sugg Max Load 87 lbf
Wind Direction Left
Wire Diameter 0.148 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 9.07 kg
Length 215.9 mm
Material High Carbon Steel
Outside Diameter 28.58 mm
Part Type Standard
Rate 2.63 N/mm
SKU 601CS
Sugg Max Deflection 111.76 mm
Sugg Max Load 386.98 N
Wind Direction Left
Wire Diameter 3.76 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $12.33
50 - 149 $11.72
150 - 299 $11.10
300 - 499 $10.49
500 - 749 $9.25
750 - 999 $8.02
1000+ Call for price