Dart Style Trim Clips for square holes, also called Bayonets,are ideally suited with trim strips, access plates, or any light application where removability is important. They are designed for applications where the substrate is some distance from the mating panel, and they are often used to allow a wire path between the two panels. The trim clip attaches to the trim piece so the assembly easily mates 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.