National Hardware® N280-362 Torsion Spring Lift Cable, 8" x 1/8", 2-PackFor use with 7' single & double wood, metal or fiberglass doors with torsion springs. 1 end pre looped & other end equipped with a drum stop. V7618 8' 8" x 1 8" Galvanized 1 end pre looped & other end equipped with a drum stop For 7' single & double wood, metal or fiberglass doors with torsion springs Carded 2 pack. WeatherGuard: When subjected to 312 hours of salt fog spray testing (BHMA A138. 18), zinc plated hardware showed severe corrosion while