The Bolt,flange,6x20 is the cheapest item from this partsfiche.
This Ignition Pulse Generator diagram displays the required parts for the Vt1100c Shadow 1100 2000 (y) Usa California Ignition Pulse Generator.
Some items from this specific schematic: Pulse Gen Assy, Clamper C,pulse, Bolt,flange,6x20, Wash,12.5x34x5.