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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-57CS - 0.78 Inch Music Wire Extension Springs

Inventory:           
Estimated Lead Time

The M-57CS is a regular extension spring manufactured by Century Spring. It is made from Music Wire and has a zinc finish. This spring has a wire diameter of 0.028 inches, an outer diameter of 0.219 inches, and a free length of 0.78 inches. It has an initial tension of 0.7 Pound and a maximum deflection of 0.62 inches. The M-57CS has a spring rate of 7.2 lbs/inch and a maximum load of 5.1 Pound Force. It features machine hook ends and is suitable for various applications.

At Century Spring, we offer fast shipping and maintain a significant stock inventory. Our products, including the M-57CS, are proudly made in the United States. With our reliable shipping and ample 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-57CS
C) Part Type Standard
D) Material Music Wire
E) Wire Diameter 0.028 in
F) Outside Diameter 0.219 in
G) Length 0.78 in
H) End Type Machine Hook
I) End Position Random
J) Rate 7.2 lbs/in
K) Initial Tension 0.7 lb
L) Sugg Max Deflection 0.62 in
L) Sugg Max Load 5.1 lbf
O) Finish Zinc
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku M-57CS
C) Part Type Standard
D) Material Music Wire
E) Wire Diameter 0.71 mm
F) Outside Diameter 5.56 mm
G) Length 19.81 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 1.26 N/mm
K) Initial Tension 0.32 kg
L) Sugg Max Deflection 15.75 mm
L) Sugg Max Load 22.68 N
O) Finish Zinc