Frienda Garage Door Torsion Springs Kit for 8 ft H 18 ft W to Standard Torsion System 0.207x2''x22'' Heavy Duty Min 15000 Cycles Springs Hardware Set for Replacement Installation (Shaft Not Included)

Features: Upgrade to standard system: Upgrades older or non-standard spring systems to industry standard torsion spring systems, significantly improving the smoothness, stability, and overall lifespan of the garage door. Guaranteed reliable performance: Optimized for heavy-duty garage doors, ensuring stable and reliable performance and preventing sudden failure. Professional installation is recommended for safety. Suitable for DIY users with appropriate tools and protective gear. Specifications: Material: 82b alloy spring steel, electroplated steel hardware Color: black Size: for 18ft wide x 8ft high sectional garage doors Package includes: 2 x Torsion springs, 2 x 8ft drums, 2 x end bearing plates, 1 x adjustable center bearing plate, 2 x lift cables, 2 x plastic bearings, 2 x non-slip winding bars, 1 x hardware pack (bolts, nuts, clamps), 1 x instruction manual. On-Slip Winding Bars, 1 x Hardware Pack (Bolts, Nuts, Clamps), 1 x Instruction Manual. Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Small parts included, please keep them away from little kids to avoid swallowing risk

• Comprehensive Accessory Kit: includes 2 torsion springs, an 8 foot dedicated reel, end bearing brackets, adjustable brackets, garage door steel cable, plastic bearings, anti slip winding rod, and a hardware kit, providing all the major components needed for the retrofit in one place
• Dedicated Matching Design: precisely designed for 18-foot wide and 8-foot high garage doors; Components are matched to the garage door, model, and hardware dimensions; This is a non-universal kit, ensuring balanced lifting and stable operation
• Strength Durable Material: constructed from 82b alloy spring steel (cold-drawn, lead bath hardened), with a tensile strength of 1080–1200 mpa; Its industrial-grade load-bearing capacity can safely support garage doors weighing up to 350 pounds
• Extra Long Service Life: the springs undergo precision heat treatment and are equipped with aluminum cones and an electrophoretic coating, offering strong corrosion resistance; The rated cycle count exceeds 15, 000 cycles (up to 16, 000+), meeting the needs of approximately 10 years of normal residential use in humid environments
• Safe and Convenient Installation: comes with a complete hardware kit (except for the torsion shaft) and detailed instructions, including an ergonomic anti slip coil bar and rubber grips, improving safety and ease of operation during installation