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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

B1-38CS - 1.75 Inch 302/304 Stainless Steel Extension Springs

Inventory:           
Estimated Lead Time

The B1-38CS is a regular extension spring manufactured by Century Spring. This spring is made from 302/304 stainless steel and has a wire diameter of 0.041 inches. It has a free length of 1.75 inches and an outside diameter of 0.359 inches. The B1-38CS has an initial tension of 1 pound and a maximum deflection of 1.4 inches. It has a rate of 4 lbs/inch and can withstand a maximum load of 6.5 pound force. This spring features full loop ends and is suitable for various extension spring applications.

At Century Spring, we pride ourselves on fast shipping and maintaining a significant stock inventory. Our products, including the B1-38CS, are made in the United States. With our efficient shipping process and ample supply, we ensure that customers can quickly receive the high-quality springs they need for their projects.

Download CAD
Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku B1-38CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 0.041 in
F) Outside Diameter 0.359 in
G) Length 1.75 in
H) End Type Full Loop
I) End Position Random
J) Rate 4 lbs/in
K) Initial Tension 1 lb
L) Sugg Max Deflection 1.4 in
L) Sugg Max Load 6.5 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku B1-38CS
C) Part Type Standard
D) Material 302/304 Stainless Steel
E) Wire Diameter 1.04 mm
F) Outside Diameter 9.12 mm
G) Length 44.45 mm
H) End Type Full Loop
I) End Position Random
J) Rate 0.7 N/mm
K) Initial Tension 0.45 kg
L) Sugg Max Deflection 35.56 mm
L) Sugg Max Load 28.91 N
O) Finish None