Rivet nut for all kinds of metal plates, tubes, and other manufacturing industries in the field of fastening, widely used in automotive, aviation, railways, refrigeration, elevators, switches, instruments, furniture, decorative and other electromechanical and light industrial products on the assembly. Developed to solve the shortcomings of thin metal plates, thin tube welding nut easy to melt, base material easy to weld deformation, tapping internal threads easy to slip teeth and so on. It does not need to tap the internal threads, no need to weld the nut, riveting firmly with high efficiency and easy to use.