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B17-178CS - 3.78 Inch Spring Steel Extension Springs

Inventory Status
Estimated Lead Time

The B17-178CS is a regular extension spring manufactured by Century Spring. It is made from spring steel with a zinc finish for added durability. This spring has a free length of 3.78 inches and an initial tension of 0.2 pounds. It has an outside diameter of 0.531 inches and a wire diameter of 0.035 inches. With a maximum deflection of 13 inches and a maximum load of 2.8 pounds force, this spring is suitable for a variety of applications. The B17-178CS features machine hook ends and is designed to provide reliable extension and tension.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, and our efficient shipping process ensures that you receive your springs quickly. We also maintain a significant inventory, allowing us to fulfill orders promptly and efficiently. All our products, including the B17-178CS, are proudly made in the United States. With our commitment to quality and reliable supply, Century Spring is the trusted choice for all your spring needs.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.2 lb
Length 3.78 in
Material Spring Steel
Outside Diameter 0.531 in
Part Type Standard
Rate 0.2 lbs/in
SKU B17-178CS
Sugg Max Deflection 13 in
Sugg Max Load 2.8 lbf
Wind Direction Left
Wire Diameter 0.035 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.09 kg
Length 96.01 mm
Material Spring Steel
Outside Diameter 13.49 mm
Part Type Standard
Rate 0.04 N/mm
SKU B17-178CS
Sugg Max Deflection 330.2 mm
Sugg Max Load 12.45 N
Wind Direction Left
Wire Diameter 0.89 mm