The Screw,tap.,5x16 is the lowest priced item on this Seat - Seat Cowl schematic.
Parts such as the Seat - Seat Cowl: Cowl,*pb-112m-u*, Screw,tap.,5x16, Bolt,flange,8x12, Rubber,seat Cowl are included in the Cb250rs 1980 (a) Germany / Type2 12.5kw Seat - Seat Cowl parts fiche.
The nine Cb250rs 1980 (a) Germany / Type2 12.5kw Seat - Seat Cowl component parts are all listed in this schematic.