There are many rivet nuts on the market. According to the head type, they can be roughly divided into flat head rivet nut and countersunk head rivet nut. The most common one is flat head rivet nut.
The flat head rivet nut changes the old way of the traditional process. When installing parts on the thin plate, there is no need to tap internal threads and no weld nuts. In terms of appearance, the top of the flat head rivet nut is flush, forming a flat interface after riveting, which is firm, beautiful, convenient, and fast.
From the perspective of use, the flat head rivet nut has a better fastening effect, and this type of rivet nut is generally used. However, in some places, the surface is required to be flat after riveting, so in the process, a counterbore can be punched first, and then riveted with a countersunk rivet nut, so that after the riveting is completed, the riveted surface is flat. But the mechanical properties of the countersunk head will be lower than the flat head rivet nut.
In addition to flat head rivet nut and countersunk head rivet nut, carbon steel rivet nut is also a very popular type of rivet nut.