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12358CS - 7.88 Inch Spring Steel Extension Springs

The 12358CS is a regular extension spring from Century Spring. It is made from spring steel and has a free length of 7.88 inches. The initial tension of this spring is 0.9 pounds, and it can handle a maximum load of 6.2 pounds force. With an outside diameter of 0.39 inches and a wire diameter of 0.041 inches, this spring has a rate of 0.53 inches per pound. It features full loop ends and has a maximum deflection of 10 inches. The 12358CS is a reliable and versatile extension spring suitable for various applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the urgency of your projects and strive to deliver your springs promptly. Our products, including the 12358CS, are proudly made in the United States, ensuring quality and supporting local manufacturing. With Century Spring, you can rely on our efficient shipping and ample supply to meet your spring needs efficiently.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.9 lb
Length 7.88 in
Material Spring Steel
Outside Diameter 0.39 in
Part Type Standard
Rate 0.53 lbs/in
SKU 12358CS
Sugg Max Deflection 10 in
Sugg Max Load 6.2 lbf
Wind Direction Left
Wire Diameter 0.041 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.41 kg
Length 200.15 mm
Material Spring Steel
Outside Diameter 9.91 mm
Part Type Standard
Rate 0.09 N/mm
SKU 12358CS
Sugg Max Deflection 254 mm
Sugg Max Load 27.58 N
Wind Direction Left
Wire Diameter 1.04 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 $4.45
50 - 149 $4.23
150 - 299 $4.01
300 - 499 $3.79
500 - 749 $3.34
750 - 999 $2.90
1000+ Call for price