Some items from this specific schematic: Wire-lead,tail Lamp, Bulb,12v20/5w, Bolt-flanged,6x16, Lamp-tail.
thirteen components are listed in the schematic for this Kaf620-a2 Mule 1996 Usa,canada Accessory(tail Lamp) .
On this parts fiche the Bolt-flanged,6x16 is the most specified component.