Pair of 170LBS Heavy Duty Garage Door Extension Springs 25" Length, Orange

Durable Elastic Material: The garage door spring is made of ASTM-A228 grade spring steel with high rigidity and strong load-bearing capacity. Suitable for high-frequency lifting of door bodies. It maintains consistent resilience after repeated stretching and torsion, and retains stable mechanical properties for long-term service.
Secure Double Loop Ends: The spring end adopts a double-loop buckle design. Two coils connect bolts and pulleys simultaneously, delivering higher structural strength than open single-loop buckles. It features superior pull-off resistance, eliminates the risk of joint failure, and ensures safety during spring replacement and daily door operation.
High Visibility Identification: Our heavy duty garage spring replacement features clear, eye-catching, exclusive model markings printed on the end with high color recognition, so you can easily tell apart tension grades of different specifications. It offers a convenient specification matching method for maintenance workers selecting suitable accessories.
Wide Application: This garage extension spring fits widely for garage doors, rolling shutters, and industrial doors. It is specially engineered to replace old springs that suffer from rust, wear, and potential safety hazards. Suitable for most residential, commercial, and industrial door assemblies.
Specification: Spring Size: 170LBS, Extension range: 635-1892 mm / 25-74.5 inch, Outer Diameter: 46.1 mm / 1.81 inch, Wire Diameter: 4.77 mm / 0.19 inch, Length: 635 mm / 25 inch, Package Content: 2Pcs Stretch Spring