
82b Overhead Garage Door 6 Inches Torsion Coil Spring with Cones. High Cycle Durability: Engineered for minimum 10,000 cycles with +/- 7.5lbs target door weight tolerance. Premium Material Finish: Black coated, oil tempered wire provides a clean and durable finish. Versatile Surface Options: Available in nickel, zinc, black, gold, silver, brass, chrome plating, and electrophoresis coating. Complete Assembly: Includes both winding and stationary aluminum cones for easy installation. Flexible Customization: Supports full customization, minor customization, and customization from designs or samples. OEM/ODM Support: Professional manufacturer offering OEM and ODM services for precision machinery parts. Quality Assurance: 100% inspection including visual and function checks with strict QA/QC protocols. Easy Identification: Clear and easy-to-read spring markings ensure quick and accurate identification.