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4401CS - 19.40 Inch Spring Steel Extension Springs

The 4401CS is a regular extension spring manufactured by Century Spring. Made from spring steel, it features a zinc finish for added durability. This spring has a free length of 19.4 inches and an initial tension of 15 pounds. With a maximum deflection of 16 inches and a maximum load of 80 pound force, it provides reliable performance for various applications. The 4401CS has an outer diameter of 1.5 inches and a wire diameter of 0.162 inches, with a spring rate of 4 inches per pound. It is equipped with machine hook ends and winds in the left direction. This standard extension spring is suitable for a wide range of projects.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we prioritize efficient shipping to ensure our customers receive their springs promptly. Additionally, all our products, including the 4401CS, are proudly made in the United States. With our commitment to quality and accessibility, Century Spring is your reliable source for springs that meet your specific needs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 15 lb
Length 19.4 in
Material Spring Steel
Outside Diameter 1.5 in
Part Type Standard
Rate 4 lbs/in
SKU 4401CS
Sugg Max Deflection 16 in
Sugg Max Load 80 lbf
Wind Direction Left
Wire Diameter 0.162 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 6.8 kg
Length 492.76 mm
Material Spring Steel
Outside Diameter 38.1 mm
Part Type Standard
Rate 0.7 N/mm
SKU 4401CS
Sugg Max Deflection 406.4 mm
Sugg Max Load 355.84 N
Wind Direction Left
Wire Diameter 4.11 mm
Inventory Status
Low Stock
Quantity Price
1 - 49 $35.12
50 - 149 $33.37
150 - 299 $31.61
300 - 499 $29.86
500 - 749 $26.34
750 - 999 $22.83
1000+ Call for price