Parts such as the Bottom Cowling: Bolt(6n6), Bolt(6u2), Bolt(6n6), Bolt(680) are included in the E48mhw 1998 Bottom Cowling parts fiche.
The thirty E48mhw 1998 Bottom Cowling component parts are all listed in this schematic.
This Cowling, Bottom is the most expensive of the items that make up this Bottom Cowling assembly.