THE SINGLE TAB WING CLIP IS COMMONLY USED WITH A BUTTON HEAD SOCKET CAP SCREW TO CREATE CUSTOM END FASTENER ASSEMBLIES. THE WINGED TAB OF THE CLIP PREVENTS THE MATING PROFILE FROM ROTATING. AN END FASTENER 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.