Rivet nut (also known as pull nut) function=pop rivet+welded nut. Blind hole flat head rivet nut is one of the head types of rivet nuts. The surface treatment of the iron material rivet nut is galvanized, and commonly used specifications include M3, M4, M5, M6, M8M10, M12, M1/4, etc. It undertakes non-standard customization. The holes of blind hole rivet nut connectors are completely sealed, ensuring no water or air leakage. Developed for the fastening industry of various metal sheets, pipes, and other manufacturing industries, to address the shortcomings of welding nuts on metal sheets, such as easy melting, and easy slipping of internal threads. It does not require further tapping of internal threads or welding of nuts, and riveting is highly efficient and does not damage the surface coating of the product during installation. Therefore, there are no restrictions on construction procedures or problems such as material distortion and deformation caused by welding. After riveting, the pull cap must have at least six full thread turns, and the strength of the fastening is not affected by the thickness of the object. The product is widely used in the assembly of industrial products such as railways, automobiles, elevators, fans, air conditioners, cabinets, and ships. Easy to install, convenient, fast, with excellent riveting, beautiful appearance and high performance, and characterized by unidirectional riveting.