The Screw Tapping,5x8 is the cheapest item from this partsfiche.
A sample from the products for the Left Crankcase Cover include: Cover,l, Screw Tapping,5x8, Rubber,mounting, Bolt,l.crankcase.
The eight Cn250 2004 (4) Usa Left Crankcase Cover component parts are all listed in this schematic.