This method of thermal metal drilling is ideal for thin-walled parts, which require thread. Due to the fact that the metal is not drilled and pressed, the hole walls are more long and quietly hold the threaded connection, eliminating the need for locking nuts. Such a method is relevant in many areas of work with metal structures, especially if the item is hollow, like a tube, and the nut is physically impossible to use there.
There are other ways to create a strong connection, but this is one of the few, and the manufacturer has already decides which method to it most appropriate to the specific technical requirements.
Drilling thermal thin-walled metal friction.