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100 YRS

The Countdown to 100 Years of Century Spring!

Since 1927, Century Spring Corp has been the original industry-leading spring manufacturer for both stock and custom springs. Read about 100 Years of Century Spring here.

167 DAYS

ZZ1-58CS - 1.50 Inch Spring Steel Extension Springs

Inventory:           
Estimated Lead Time

The ZZ1-58CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and features a zinc finish. This spring has a free length of 1.5 inches and an initial tension of 7 pounds. It has a maximum deflection of 0.35 inches and can handle a maximum load of 29 pounds force. The ZZ1-58CS has an outer diameter of 0.5 inches and a wire diameter of 0.076 inches. With a spring rate of 63 lbs/inch, it is designed for various applications requiring extension springs.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. Our products, including the ZZ1-58CS, are proudly made in the United States. With our efficient shipping process and ample supply, Century Spring ensures that customers can quickly receive the high-quality springs they need for their projects.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku ZZ1-58CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 0.076 in
F) Outside Diameter 0.5 in
G) Length 1.5 in
H) End Type Machine Hook
I) End Position Random
J) Rate 63 lbs/in
K) Initial Tension 7 lb
L) Sugg Max Deflection 0.35 in
L) Sugg Max Load 29 lbf
O) Finish Zinc
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku ZZ1-58CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 1.93 mm
F) Outside Diameter 12.7 mm
G) Length 38.1 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 11.03 N/mm
K) Initial Tension 3.17 kg
L) Sugg Max Deflection 8.89 mm
L) Sugg Max Load 128.99 N
O) Finish Zinc