The standard end fastener assembly is comprised of a button head socket cap screw and wing clip. The end fastener provides a fixed, 90 degree, moderate-strength connection that is completely hidden. The winged tabs of the clip prevent the mating profile from rotating. This connection method requires two machining services; an end tap on the mounting profile and an access hole in the mating profile in order to reach the screw head.
Wing clips are available separately (without the button head socket cap screw) for instances where you want to create your own custom assembly.