The Screw, With Washer(6g7) is the lowest priced item on this Vapor Separator 2 schematic.
Parts such as the Vapor Separator 2: Screw, Screw, Stop, Collar(6k7), Washer, Plate(65j) are included in the Vz150tlry 2000 Vapor Separator 2 parts fiche.
The eighteen Vz150tlry 2000 Vapor Separator 2 component parts are all listed in this schematic.