The most reasonably priced component used on the Cb250 Nighthawk 1990 (l) Usa Cylinder Head is the Bolt,stud 2,6x18.
The Nut,flange,6mm is the most widely applied product in the CB250 NIGHTHAWK 1990 (L) USA CYLINDER HEAD ( six times ).
Some items from this specific schematic: Bolt,flange,6x65, Gasket,cylinder H (nas), Bolt,stud,6x40, Gasket,carb.insul.