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100 YRS

The Countdown to 100 Years of Century Spring!

Since 1927, Century Spring Corp has been the original industry-leading spring manufacturer for both stock and custom springs. Read about 100 Years of Century Spring here.

167 DAYS

M-4CS - 0.97 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The M-4CS is a regular extension spring manufactured by Century Spring. It is made from 302/304 Stainless Steel and has a machine hook on both ends. This spring has a free length of 0.97 inch and an outside diameter of 0.25 inches. It has an initial tension of 5 pounds and a maximum deflection of 0.21 inches. The M-4CS has a spring rate of 56 lbs/inch and a maximum load of 16 pound force. It has a left wind direction and a wire diameter of 0.048 inches. This extension spring is suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery and maintaining a wide range of products for our customers. All our springs, including the M-4CS, are proudly made in the United States. With our reliable shipping and vast supply, Century Spring ensures that customers can quickly receive the springs they need for their projects.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku M-4CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.048 in
F) Outside Diameter 0.25 in
G) Length 0.97 in
H) End Type Machine Hook
I) End Position Random
J) Rate 56 lbs/in
K) Initial Tension 5 lb
L) Sugg Max Deflection 0.21 in
L) Sugg Max Load 16 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku M-4CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 1.22 mm
F) Outside Diameter 6.35 mm
G) Length 24.64 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 9.81 N/mm
K) Initial Tension 2.27 kg
L) Sugg Max Deflection 5.33 mm
L) Sugg Max Load 71.17 N
O) Finish None