The flat head rivet nut was developed to solve the shortcomings of thin metal plate and thin tube welded nuts, such as easy melting, welding deformation of the base metal, and easy slippage of internal threads during tapping. Rivet nuts are usually used for thin-walled panels and are embedded by pressure. The contact surface is the contact stress, which means that the strength depends on the connector and the substrate. The nut is subjected to shear stress. Therefore, if the strength of the nut is insufficient, it will be sheared and damaged, and the insufficient strength of the base will cause plastic collapse and deformation failure.

In order to eliminate the threat of hydrogen embrittlement, the fasteners should be heated and baked as soon as possible after plating to make hydrogen seep out from the coating. Baking is usually carried out at 375-4000°F (176-190°C) for 3-24 hours. Because mechanical galvanizing is a non-electrolyte, it actually eliminates the threat of hydrogen embrittlement, while electroplating uses electrochemical methods and hydrogen embrittlement exists. In addition, engineering standards prohibit hot-dip galvanizing of fasteners with a hardness higher than HRC35 (Gr8 in English and 10.9 or higher in metric). Therefore, hydrogen embrittlement rarely occurs in hot-dipped fasteners.

The steps in the production process of carbon steel rivet nut and other rivet nuts: 1. After all production is completed, the shape (ie appearance) of the rivet nut must be stamped with a nut machine. 2. After punching the pier, tap with a nut tapping machine. 3. After tapping, perform electroplating. Stainless steel rivet nuts do not need electroplating, only need to be cleaned. If you want to electroplate other colors, you must go to a professional electroplating factory for electroplating.