The component with the lowest price in the SEAT schematic is the Washer,screw 6x12.
In this schematic the "Washer,32x6.5x2.3" is used most often.
A sample from the products for the Seat include: Nut,flange,6mm, Bolt,flange,6x12, Bag,sissy Bar Min, Collar,r.grab Rai.