The component with the lowest price in the FRONT CYLINDER HEAD (VL800 E28) schematic is the Bolt(6x50).
forty-nine components are shown in this Vl800c Boulevard C50 2012 (l2) Usa Californ Canada (e03 E33 E28) Front Cylinder Head (vl800 E28) exploded diagram.
On this parts fiche the Bolt is the most specified component.