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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

A12-20CS - 1.20 Inch Spring Steel Extension Springs

Inventory:           
Estimated Lead Time

The A12-20CS is a regular extension spring manufactured by Century Spring. It is made from Spring Steel and features a zinc finish for added durability. This spring has a wire diameter of 0.0625 Inch and an outer diameter of 0.328 inches. With a free length of 1.2 inches, it provides an initial tension of 9 Pound. The A12-20CS has a maximum deflection of 0.22 Inch and a maximum load of 28 Pound Force. It is designed with machine hooks on both ends for easy installation. This extension spring is suitable for a variety of applications.

At Century Spring, we take pride in our fast shipping and extensive inventory. Our products, including the A12-20CS, are manufactured right here in the United States. With our efficient shipping process and ample stock, we ensure that you receive your springs promptly to keep your projects running smoothly. Trust Century Spring for all your spring needs.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku A12-20CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 0.0625 in
F) Outside Diameter 0.328 in
G) Length 1.2 in
H) End Type Machine Hook
I) End Position Random
J) Rate 88 lbs/in
K) Initial Tension 9 lb
L) Sugg Max Deflection 0.22 in
L) Sugg Max Load 28 lbf
O) Finish Zinc
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku A12-20CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 1.59 mm
F) Outside Diameter 8.33 mm
G) Length 30.48 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 15.41 N/mm
K) Initial Tension 4.08 kg
L) Sugg Max Deflection 5.59 mm
L) Sugg Max Load 124.54 N
O) Finish Zinc