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12356CS - 4.38 Inch Spring Steel Extension Springs

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 0.096 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 inches per pound. 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.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 8 lb
Length 4.38 in
Material Spring Steel
Outside Diameter 0.75 in
Part Type Standard
Rate 12 lbs/in
SKU 12356CS
Sugg Max Deflection 2.5 in
Sugg Max Load 37 lbf
Wind Direction Left
Wire Diameter 0.096 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 3.63 kg
Length 111.25 mm
Material Spring Steel
Outside Diameter 19.05 mm
Part Type Standard
Rate 2.1 N/mm
SKU 12356CS
Sugg Max Deflection 63.5 mm
Sugg Max Load 164.58 N
Wind Direction Left
Wire Diameter 2.44 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $4.64
50 - 149 $4.41
150 - 299 $4.18
300 - 499 $3.95
500 - 749 $3.48
750 - 999 $3.02
1000+ Call for price