A fastener adapted to join a first component to a second component. The fastener includes a first connecting end adapted to engage a slot opening in the first component, and a second connecting end adapted for press-fit insertion into an opening in the second component. The first connecting end includes a raised edge collar defining a concave surface facing away from the second connecting end and an opposing platform surface disposed above the raised edge collar in spaced relation to the raised edge collar with a post member extending between the raised edge collar and the opposing platform surface. The first connecting end is adapted to hold the first component in sandwiched relation between the raised edge collar and the opposing platform surface. The raised edge collar includes a segmented perimeter wall including a plurality of cut-outs defining substantially independently flexible segments between the cut-outs.