With four applications this Collar,6=16.1 is the most specified part.
The component with the lowest price in the Headlight(s) schematic is the Bolt-flanged,6x30.
Some items from this specific schematic: Washer,6.5x20x3.2, Bolt-flanged,6x30, Lens-comp,head Lamp,l, Damper,10x20x12.