Overhead Garage Door Torsion Springs Garage Door Springs

Description

Material: High carbon steel  :  77B / 82B
Wire diameter: 5 mm /5.5mm /5mm /6.5mm /7mm /7.5 mm
Inside diameter: 50.8mm -152mm
Outer diameter: 325mm – 3500 mm
Surface: Oiled Tempered  /  Black coated/Corrosion resistant
Usage: Rolling door / garage door / industrial /Furniture
We have black and galvanized garage door spring and related different sizes of garage door spring fitting such as 1 3/4’’, 2’’, 2 5/8’’, 3 3/4’’, 5 1/4’’, 6’’. The material of garage door spring fitting is aluminum.
The spring mainly plays a balancing role, reducing the burden on the motor. The strength of the spring and the strength of the door are quite ideal.