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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.

189 DAYS

12356CS - 4.38 Inch Spring Steel Extension Springs

Inventory:           
Estimated Lead Time

The 12356CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and features a zinc finish. This spring has a wire diameter of 0.095 inches, an outer diameter of 0.75 inches, and a free length of 4.38 inches. It has an initial tension of 8 Pound and a maximum deflection of 2.5 inches. The 12356CS has a maximum load capacity of 37 Pound Force and a spring rate of 12 lbs/inch. It is equipped with machine hooks on both ends for easy installation. This regular extension spring from Century Spring is perfect for a variety of applications.

Century Spring takes pride in its fast shipping and extensive stock inventory. We understand the importance of timely delivery and strive to ensure that our customers receive their springs promptly. With our significant stock, including the 12356CS, we can fulfill orders quickly and efficiently. What's more, all of our springs are proudly made in the United States, ensuring the highest quality and craftsmanship. Trust Century Spring for all your spring needs and experience our reliable shipping and superb product selection.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku 12356CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 0.095 in
F) Outside Diameter 0.75 in
G) Length 4.38 in
H) End Type Machine Hook
I) End Position Random
J) Rate 12 lbs/in
K) Initial Tension 8.7 lb
L) Sugg Max Deflection 2.5 in
L) Sugg Max Load 37 lbf
O) Finish Zinc
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku 12356CS
C) Part Type Standard
D) Material Spring Steel
E) Wire Diameter 2.41 mm
F) Outside Diameter 19.05 mm
G) Length 111.25 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 2.1 N/mm
K) Initial Tension 3.95 kg
L) Sugg Max Deflection 63.5 mm
L) Sugg Max Load 164.58 N
O) Finish Zinc