Adjustable ball-joint torque hinge made of durable iron offers 360° rotation and free-stop at any angle. Available in 1.0, 2.0, and 3.0 N·m torque options, easily adjusted with a flathead screwdriver for precise control. Designed for robotic arms, equipment mounts, and precision devices, it delivers smooth, stable motion and long-lasting reliability—ideal for industrial and automation applications.