EFC-INTL's Bayonet Style Trim Clips are primarily used in the interior of the automobile for the retention of trim panels, trim plates, or speaker grilles. Designed for use over rectangular stud or integrally molded rib, etc. The trim clip attaches to the trim piece by push-on force over the rib. Then the assembly easily mates with the structural panel with a push-to-snap-in force. Insertion and pull-out forces vary depending on mating panel hole configuration, panel thickness and finish.