On this parts fiche the Bolt(6x20) is the most specified component.
Parts such as the Fuel Cock: Bolt(6x20), Spring, Gasket,joint (nas), Clip are included in the Dr200se 2005 (k5) Usa (e03) Fuel Cock parts fiche.
Of all the components used in this assembly the Cock Assy,fuel is the most expensive.