The most reasonably priced component used on the Vf750c Magna 1996 (t) Canada / Kmh Seat is the Nut,flange,6mm.
A sample from the products for the Seat include: Seat Assy,rear, Nut,flange,6mm, Rubber Set Stop, Stay A,rr.seat.
In this schematic the "Nut,flange,6mm" is used most often.