In this schematic the "Bolt" is used most often.
Parts such as the Headlamp Housing: Bolt, Bolt, Bolt, 09118-08163 are included in the Lt-f160 Quad Runner 2001 (k1) Usa (e03) Quadrunner Quad-runner Headlamp Housing parts fiche.
The most expensive part in this assembly is the Bracket,headlamp,r.