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558CS - 1.25 Inch Music Wire Extension Springs

The 558CS is a regular extension spring manufactured by Century Spring. It features machine hook ends and a zinc finish for durability. With a free length of 1.25 inches and a wire diameter of 0.022 inches, this spring is designed to provide a maximum deflection of 2.2 inches. It has an initial tension of 0.2 pounds and a maximum load capacity of 2.6 pound force. Made from high-quality music wire, the 558CS offers reliable performance. With a rate of 1.1 inches per pound, it is suitable for a range of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. When you choose us, you can expect your springs to arrive quickly, ensuring minimal downtime for your projects. As an American company, we are committed to manufacturing our products in the United States, maintaining high standards of quality and supporting local industries. With Century Spring, you can trust that you will receive top-notch springs that meet your needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.2 lb
Length 1.25 in
Material Music Wire
Outside Diameter 0.219 in
Part Type Standard
Rate 1.1 lbs/in
SKU 558CS
Sugg Max Deflection 2.2 in
Sugg Max Load 2.6 lbf
Wind Direction Left
Wire Diameter 0.022 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.09 kg
Length 31.75 mm
Material Music Wire
Outside Diameter 5.56 mm
Part Type Standard
Rate 0.19 N/mm
SKU 558CS
Sugg Max Deflection 55.88 mm
Sugg Max Load 11.56 N
Wind Direction Left
Wire Diameter 0.56 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.36
50 - 149 $2.25
150 - 299 $2.13
300 - 499 $2.01
500 - 749 $1.77
750 - 999 $1.54
1000+ Call for price