ten components are listed in the schematic for this Dr600r 1986 (g) (e02 E04 E16 E18 E21 E22 E24 E25 E34) Fuel Cock .
On this parts fiche the Bolt(6x20) is the most specified component.
Parts such as the Fuel Cock: Hose, Gasket(6.4x11.5x0.8) (nas), Gasket, Gasket,fuel Cock (nas) are included in the Dr600r 1986 (g) (e02 E04 E16 E18 E21 E22 E24 E25 E34) Fuel Cock parts fiche.