We all know that there are many classifications of rivet nuts, blind rivet nut , countersunk head rivet nut, etc., but under these classifications, there are also types of classifications, such as blind rivet nuts m6/0, 5-3 compared to open rivet nuts In terms of M6: the internal thread of the rivet nut is coarse-threaded M6, and 0,5-3: the thickness of the riveted object of this rivet nut...