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A12-20CS - 1.20 Inch Spring Steel Extension Springs

Inventory Status
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
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 9 lb
Length 1.2 in
Material Spring Steel
Outside Diameter 0.328 in
Part Type Standard
Rate 88 lbs/in
SKU A12-20CS
Sugg Max Deflection 0.22 in
Sugg Max Load 28 lbf
Wind Direction Left
Wire Diameter 0.0625 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 4.08 kg
Length 30.48 mm
Material Spring Steel
Outside Diameter 8.33 mm
Part Type Standard
Rate 15.41 N/mm
SKU A12-20CS
Sugg Max Deflection 5.59 mm
Sugg Max Load 124.54 N
Wind Direction Left
Wire Diameter 1.59 mm