The ten Br250tm 1988 Steering Gate component parts are all listed in this schematic.
Parts such as the Steering Gate: Ybs66-6 Washer, Plain, Clamp (1e6), Bolt, Flange (4h7), Screw Pan Head are included in the Br250tm 1988 Steering Gate parts fiche.
The Bolt, Flange (4h7) is the lowest priced item on this Steering Gate schematic.