Parts such as the Left Rear Cover: Bolt,flange,sh,6x40, Clip,starter Moto, Cov,l,rr C/case are included in the Cb250 1999 (x) Spain Left Rear Cover parts fiche.
With two applications this Bolt,flange,sh,6x40 is the most specified part.
The Left Rear Cover assembly is constructed from several parts from which the Cov,l,rr C/case is the most expensive.