The Bolt,b,special is the most widely applied product in the XL250R 1985 (F) USA SEAT ( two times ).
A sample from the products for the Seat include: Bolt Flange 8x16, Seat Assy.double, Belt Comp*type 1*, Bolt,flange,8x16.
This schematic depicts all components used in the Xl250r 1985 (f) Usa Seat partslist.