On this parts fiche the Screw-pan-cros,5x25 is the most specified component.
A sample from the products for the Handlebar G4tr-b ('70-'73) include: Rubber-l.h Grip, Switch Assy,horn Butn, Grip Assy-throttle, Wiring Harness-l.h Sw.
The fifty-three Kv100-a7 1976 Usa California Handlebar G4tr-b ('70-'73) component parts are all listed in this schematic.