On this parts fiche the Spacer(6.4x10x18) is the most specified component.
The most reasonably priced component used on the Vz800 Boulevard M50 2005 (k5) Usa (e03) Boulevardm50 Boulevard-m Electrical (model K9 E3 is the Screw(6x8).
Parts such as the Electrical (model K9 E3: Seal,high Tension Cord, Bolt(5x35), Sensor Assy,fuel Cut, Spacer(6.4x10x18) are included in the Vz800 Boulevard M50 2005 (k5) Usa (e03) Boulevardm50 Boulevard-m Electrical (model K9 E3 parts fiche.