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ZZ4-38CS - 0.50 Inch Music Wire Extension Springs

Inventory Status
Estimated Lead Time

The ZZ4-38CS is a regular extension spring by Century Spring. It is made from Music Wire and has a natural finish. This spring has a wire diameter of 0.013 inches, an outside diameter of 0.094 inches, and a free length of 0.5 inches. It has an initial tension of 0.2 Pound and a maximum deflection of 0.41 inches. The ZZ4-38CS has a spring rate of 3 lbs/inch and can withstand a maximum load of 1.4 Pound Force. It is a full loop spring, meaning the ends are closed. The ZZ4-38CS is a standard extension spring suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of quick delivery, and that's why we ensure prompt shipment of our products, including the ZZ4-38CS. Additionally, all our springs are proudly made in the United States. This commitment to quality and local manufacturing allows us to provide reliable springs that meet the needs of our customers. Trust Century Spring for your spring requirements, and experience the convenience of our efficient shipping and abundant inventory.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.2 lb
Length 0.5 in
Material Music Wire
Outside Diameter 0.094 in
Part Type Standard
Rate 3 lbs/in
SKU ZZ4-38CS
Sugg Max Deflection 0.41 in
Sugg Max Load 1.4 lbf
Wind Direction Left
Wire Diameter 0.013 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.09 kg
Length 12.7 mm
Material Music Wire
Outside Diameter 2.39 mm
Part Type Standard
Rate 0.53 N/mm
SKU ZZ4-38CS
Sugg Max Deflection 10.41 mm
Sugg Max Load 6.23 N
Wind Direction Left
Wire Diameter 0.33 mm