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12381CS - 1.75 Inch Spring Steel Extension Springs

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

The 12381CS 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 0.035 Inch and an outside diameter of 0.312 inches. With a free length of 1.75 Inch and an initial tension of 0.8 Pound, it offers reliable performance for various applications. The 12381CS has a maximum deflection of 1.6 Inch and can withstand a maximum load of 4.9 Pound Force. Its left wind direction and machine hook ends make it easy to install and use.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. Our products, including the 12381CS, are made in the United States, ensuring quality and reliability. With our efficient shipping process and ample supply, we strive to provide our customers with the springs they need promptly. Trust Century Spring for all your spring requirements.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.8 lb
Length 1.75 in
Material Spring Steel
Outside Diameter 0.312 in
Part Type Standard
Rate 2.5 lbs/in
SKU 12381CS
Sugg Max Deflection 1.6 in
Sugg Max Load 4.9 lbf
Wind Direction Left
Wire Diameter 0.035 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.36 kg
Length 44.45 mm
Material Spring Steel
Outside Diameter 7.92 mm
Part Type Standard
Rate 0.44 N/mm
SKU 12381CS
Sugg Max Deflection 40.64 mm
Sugg Max Load 21.8 N
Wind Direction Left
Wire Diameter 0.89 mm