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568CS - 4.50 Inch Spring Steel Extension Springs

The 568CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a zinc finish. This spring has a wire diameter of 0.041 inches, an outside diameter of 0.375 inches, and a free length of 4.5 inches. It has an initial tension of 1.2 Pound and a maximum deflection of 4.9 inches. The 568CS has a maximum load of 6.5 Pound Force and features machine hook ends. It is a left-wound spring and is suitable for various extension spring applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the urgency of our customers' needs and strive to deliver their springs quickly and efficiently. With our significant stock, customers can rely on us to have the springs they need readily available. Furthermore, we are proud to say that all of our products, including the 568CS, are made right here in the United States. Our commitment to quality and craftsmanship ensures that our customers receive reliable and durable springs for their projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1.2 lb
Length 4.5 in
Material Spring Steel
Outside Diameter 0.375 in
Part Type Standard
Rate 1.1 lbs/in
SKU 568CS
Sugg Max Deflection 4.9 in
Sugg Max Load 6.5 lbf
Wind Direction Left
Wire Diameter 0.041 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.54 kg
Length 114.3 mm
Material Spring Steel
Outside Diameter 9.53 mm
Part Type Standard
Rate 0.19 N/mm
SKU 568CS
Sugg Max Deflection 124.46 mm
Sugg Max Load 28.91 N
Wind Direction Left
Wire Diameter 1.04 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $4.11
50 - 149 $3.91
150 - 299 $3.70
300 - 499 $3.50
500 - 749 $3.09
750 - 999 $2.68
1000+ Call for price