The most reasonably priced component used on the C150(txr/tlr)u 1996 Bottom Cowling is the Bolt(ga1).
The forty-two C150(txr/tlr)u 1996 Bottom Cowling component parts are all listed in this schematic.
Parts such as the Bottom Cowling: Washer, Wave (6e5), Bolt(ga1), Plate, Fitting, Bolt(6n6) are included in the C150(txr/tlr)u 1996 Bottom Cowling parts fiche.