The Bolt,hex, 5x20 is the lowest priced item on this Oil Pump schematic.
With all the components that make up the CB250P 2004 (4) HONG KONG / PLR OIL PUMP assembly. The Screw,flat,6x32 is the most frequently specified with three applications.
Some items from this specific schematic: O Ring 6x3, Bolt,hex, 5x20, Rotor,oilpump Out, Rotor,oil Pump In.