The Bolt(6x20) is the most widely applied product in the GS750N 1978 (C) USA (E03) FUEL COCK ( two times ).
Check out any of the thirteen Fuel Cock components enlisted.
Parts such as the Fuel Cock: Gasket (nas), Clip, Gasket,fuel Cock (nas), Hose are included in the Gs750n 1978 (c) Usa (e03) Fuel Cock parts fiche.