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ZZ4-65CS - 3.44 Inch Music Wire Extension Springs

Inventory Status
Estimated Lead Time

The ZZ4-65CS is a regular extension spring manufactured by Century Spring. It features a zinc finish and is made from high-quality music wire material. This spring has a free length of 3.44 inches and an initial tension of 0.3 pounds. With a maximum deflection of 5.8 inches and a maximum load of 2.6 pound force, it offers reliable performance for various applications. The ZZ4-65CS has an outside diameter of 0.188 inches and a wire diameter of 0.021 inches. With a spring rate of 0.41 lbs/inch, it provides the necessary flexibility and strength. This left-wound spring has machine hook ends, making it easy to install and use. Century Spring ensures that the ZZ4-65CS meets the highest standards of quality and durability.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery for our customers, which is why we prioritize efficient shipping processes. Additionally, our significant stock inventory ensures that you can find the springs you need, including the ZZ4-65CS, without any delays. We are proud to manufacture our springs in the United States, maintaining the highest level of craftsmanship and quality. With Century Spring, you can trust that your projects will be supported by reliable and durable springs made right here in the USA.

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.3 lb
Length 3.44 in
Material Music Wire
Outside Diameter 0.188 in
Part Type Standard
Rate 0.41 lbs/in
SKU ZZ4-65CS
Sugg Max Deflection 5.8 in
Sugg Max Load 2.6 lbf
Wind Direction Left
Wire Diameter 0.021 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.14 kg
Length 87.38 mm
Material Music Wire
Outside Diameter 4.78 mm
Part Type Standard
Rate 0.07 N/mm
SKU ZZ4-65CS
Sugg Max Deflection 147.32 mm
Sugg Max Load 11.56 N
Wind Direction Left
Wire Diameter 0.53 mm