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686CS - 11.80 Inch High Carbon Steel Extension Springs

The 686CS is a regular extension spring manufactured by Century Spring. It features a double loop design for secure attachment. This spring is made from High Carbon steel and has a zinc finish for added durability. With a free length of 11.8 inches and a maximum deflection of 13 inches, the 686CS can provide the necessary tension for various applications. It has an initial tension of 8 pounds and a maximum load capacity of 40 pound force. The spring has an outside diameter of 1.25 inches and a wire diameter of 0.12 inches, giving it a spring rate of 2.6 inches per pound. Century Spring's 686CS is a reliable extension spring suitable for a wide range of projects.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we strive to ship our products quickly. Additionally, we maintain a significant stock of springs, including the 686CS, ensuring that our customers have access to the parts they need when they need them. Furthermore, all our springs are proudly made in the United States, guaranteeing high-quality craftsmanship and supporting local manufacturing. Trust Century Spring for fast shipping, ample availability, and American-made excellence.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Double Loop
Finish Zinc
Initial Tension 8 lb
Length 11.8 in
Material High Carbon Steel
Outside Diameter 1.25 in
Part Type Standard
Rate 2.6 lbs/in
SKU 686CS
Sugg Max Deflection 13 in
Sugg Max Load 40 lbf
Wind Direction Left
Wire Diameter 0.12 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Double Loop
Finish Zinc
Initial Tension 3.63 kg
Length 299.72 mm
Material High Carbon Steel
Outside Diameter 31.75 mm
Part Type Standard
Rate 0.46 N/mm
SKU 686CS
Sugg Max Deflection 330.2 mm
Sugg Max Load 177.92 N
Wind Direction Left
Wire Diameter 3.05 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $18.28
50 - 149 $17.37
150 - 299 $16.46
300 - 499 $15.54
500 - 749 $13.71
750 - 999 $11.89
1000+ Call for price