The commonly used materials for American hose clamps are: stainless steel (201/304/316), and the surface of carbon steel is plated with white zinc. Because the occlusal groove of the American hose clamp steel belt is passed through, and the teeth of the screw are embedded, so it is more powerful and precise when locked. But because the steel strip is self-permeable, the steel strip is easy to break when the pulling force is strong. This tensile performance is relatively stronger than the German hose clamp. The hose clamp is widely used in the leather hose connection of automobile pipelines, water pumps, fans, food machinery, chemical machinery and other industrial equipment. The occlusal groove on the steel band of the American hose clamp is transparent, hollowed out and stamped, and has two groove shapes,  rectangular hole and willow leaf hole. The worm wheel screw on the hose clamp, the thread is embedded in the groove, and the screw is generally used to tighten the diameter of the steel belt of the hose clamp, so as to achieve the locking effect.