Parts such as the Headlight: Screw,tapping4x10, Clip 4x40, Light Assy.,head, Case Assy,hd/lt are included in the Cb650sc Nighthawk 1984 (e) Usa Headlight parts fiche.
With two applications this Collar,hd/lt Case is the most specified part.
Check out any of the twenty Headlight components enlisted.