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12357CS - 7.25 Inch Spring Steel Extension Springs

The 12357CS is a regular extension spring manufactured by Century Spring. It is made from spring steel with a machine hook on each end. This spring has a free length of 7.25 inches and an outside diameter of 1.25 inches. It has an initial tension of 71 pounds and a maximum deflection of 1.7 inches. The 12357CS has a rate of 88 inches per pound and a maximum load capacity of 222 pounds. It weighs 1.0252 pounds and is wound in a left direction with a wire diameter of 0.21 inches. This extension spring is suitable for various applications and is a reliable choice for your needs.

At Century Spring, we prioritize fast shipping and maintain a significant stock inventory. We understand the importance of timely delivery for your projects, which is why we strive to process and ship orders promptly. Our extensive inventory ensures that you can find the springs you need without any delays. We take pride in manufacturing our products in the United States, ensuring high-quality craftsmanship and supporting the local economy. Trust Century Spring for your spring needs and experience our efficient shipping and reliable supply.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 71 lb
Length 7.25 in
Material Spring Steel
Outside Diameter 1.25 in
Part Type Standard
Rate 88 lbs/in
SKU 12357CS
Sugg Max Deflection 1.7 in
Sugg Max Load 222 lbf
Wind Direction Left
Wire Diameter 0.21 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 32.2 kg
Length 184.15 mm
Material Spring Steel
Outside Diameter 31.75 mm
Part Type Standard
Rate 15.41 N/mm
SKU 12357CS
Sugg Max Deflection 43.18 mm
Sugg Max Load 987.46 N
Wind Direction Left
Wire Diameter 5.33 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Pricing reflects the base un-configured part price. Final per piece price including configured options will be calculated once a quantity is entered in the field above.

Quantity Price
1 - 49 $24.32
50 - 149 $23.11
150 - 299 $21.89
300 - 499 $20.68
500 - 749 $18.24
750 - 999 $15.81
1000+ Call for price