A system for securing a floor mat with respect to a carpet within a vehicle that may include a carpet grommet configured to secure to the carpet, a mat grommet configured to secure to the floor mat, and a locking ring secured to or within one of the carpet grommet or the mat grommet. The locking ring includes first ramped shelves configured to securely abut reciprocal ramped surfaces formed on the other of the carpet grommet or the mat grommet. The first ramped shelves are angled in a non-perpendicular and non-parallel manner with respect to a central longitudinal axis of the system, wherein the locking ring secures the carpet grommet to the mat grommet. The carpet grommet may also include an auger configured to pierce and secure into the carpet.