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ZZ4-37CS - 3.25 Inch 302/304 Stainless Steel Extension Springs

Inventory Status
Estimated Lead Time

The ZZ4-37CS is a regular extension spring manufactured by Century Spring. It is made from 302/304 stainless steel and has a natural finish. This spring has a wire diameter of 0.046 inches, an outside diameter of 0.25 inches, and a free length of 3.25 inches. It has an initial tension of 4 pounds and a maximum deflection of 0.98 inches. The ZZ4-37CS has a spring rate of 10 inch-pounds and can withstand a maximum load of 14 pound force. It features machine hooks on both ends for easy installation. This extension spring is ideal for various applications that require reliable tension and flexibility.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of prompt delivery and ensuring our customers have access to the springs they need. Our products, including the ZZ4-37CS, are proudly made in the United States. With our efficient shipping process and ample supply, Century Spring is committed to providing exceptional service and high-quality springs for all your industrial and commercial needs.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 4 lb
Length 3.25 in
Material 302/304 Stainless Steel
Outside Diameter 0.25 in
Part Type Standard
Rate 10 lbs/in
SKU ZZ4-37CS
Sugg Max Deflection 0.98 in
Sugg Max Load 14 lbf
Wind Direction Left
Wire Diameter 0.046 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 1.81 kg
Length 82.55 mm
Material 302/304 Stainless Steel
Outside Diameter 6.35 mm
Part Type Standard
Rate 1.75 N/mm
SKU ZZ4-37CS
Sugg Max Deflection 24.89 mm
Sugg Max Load 62.27 N
Wind Direction Left
Wire Diameter 1.17 mm