A rivet plug is mainly comprised of a rivet core and a rivet housing 1. The rivet housing 1 is hollow and cylindrical and has one closed end. The closed end of the rivet housing 1 is provided with a recess 2. The rivet core consists of a rivet rod 3 and a rivet head 4. The rivet head 4 closely fits the hollow space of the rivet housing 1. The rivet head 4 is provided with a recess 5 corresponding to the recess 2 of the rivet housing 1. The rivet head 4 is entirely shaped as a truncated cone.
