The most reasonably priced component used on the C90st Cub 1999 (x) Mexico / Csw Ss Seat (2) is the Bolt,hex.,8x18.
Some items from this specific schematic: Nut,flange,6mm, Seat Comp,pillion, Bracket,seat, Bolt-washer,6x25.
With a quantity of four pieces, the Collar,tank Set is the most used part in the SEAT (2) diagram.