Some items from this specific schematic: Bolt,flange,6x40, Socket Bolt,6x80, Bolt,plug Drain 14mm, Bolt,flange,6x50.
The Lower Crankcase assembly is constructed from several parts from which the Crankcase,lower is the most expensive.
twenty components are shown in this Cb400nc 1983 (d) Belgium Lower Crankcase exploded diagram.