250 x 3-3/8 Commercial Garage Door Torsion Spring

Extended Lifecycle: Rated for an above-industry-standard minimum of 20,000 cycles, guaranteeing long-lasting reliability in high-traffic commercial applications. Durable Material: Constructed from high carbon ASTM 229 Class II Oil-Tempered Wire, delivering enhanced strength, durability, and corrosion resistance. Precision Performance: Engineered for optimal spring rate, maximum deflection, and maximum load, ensuring smooth, consistent operation and precise wind specifications. Pre-Installed Cones: Features pre-installed winding and stationary cones, stenciled and color-coded for easy identification and streamlined installation.