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B6-59CS - 3.50 Inch Spring Steel Extension Springs

Inventory Status
Estimated Lead Time

The B6-59CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a machine hook at each end. This spring has a free length of 3.5 inches and a maximum deflection of 8.3 inches. It has an initial tension of 0.7 pound and a maximum load of 6.8 pound force. With an outside diameter of 0.75 inches and a wire diameter of 0.054 inches, the B6-59CS has a spring rate of 0.74 lbs/inch. This standard extension spring is suitable for a variety of applications.

At Century Spring, we pride ourselves on fast shipping and maintaining a significant stock inventory. We understand the importance of timely delivery for our customers' projects. That's why we ensure that our products, including the B6-59CS, are made in the United States. With our reliable shipping and ample supply, Century Spring is committed to providing customers with the springs they need when they need them.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.7 lb
Length 3.5 in
Material Spring Steel
Outside Diameter 0.75 in
Part Type Standard
Rate 0.74 lbs/in
SKU B6-59CS
Sugg Max Deflection 8.3 in
Sugg Max Load 6.8 lbf
Wind Direction Left
Wire Diameter 0.054 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.32 kg
Length 88.9 mm
Material Spring Steel
Outside Diameter 19.05 mm
Part Type Standard
Rate 0.13 N/mm
SKU B6-59CS
Sugg Max Deflection 210.82 mm
Sugg Max Load 30.25 N
Wind Direction Left
Wire Diameter 1.37 mm