The Cb900c 900 Custom 1982 (c) Usa Battery consists of twenty-three pieces with the Box, Battery being the most expensive.
Some items from this specific schematic: Cushion,battery, Bolt Flang 6x12, Battery,12v14, Bolt,flange 6x10.
On this parts fiche the Bolt, Flange,6x12 is the most specified component.