306 x 2-5/8 Commercial Garage Door Torsion Spring

Cycle Rating: All springs are rated for an above-industry-standard minimum lifecycle of 20,000 cycles, ensuring a long service life, even with frequent use. High-Quality Material: Constructed from high carbon ASTM 229 Class II Oil-Tempered Wire, this spring offers enhanced strength, durability, and corrosion resistance, making it suitable for tough environments. Performance Factors: Designed with optimal spring rate, maximum deflection, maximum load, and precise wind specifications to guarantee smooth operation and prevent overstraining the system. Pre-Installed Cones: Comes with winding and stationary cones already installed, which are stenciled and color-coded for quick and easy identification, facilitating a hassle-free installation process.