Oil Tempered Surface
The surface is painted with oil toeffectively prevent oxidation and rust.Affordable price and long service life.
This garage door steel torsion spring crafted with precision from high carbon steel 82B and cast aluminum ADC12. This torsion spring is coated for clean handling, has the dimensions stenciled on it for easy identification, and like all of our parts, is made from quality steel. Both winding and stationary cones are professionally installed.