In this schematic the "Cap,soc.bolt 8mm" is used most often.
A sample from the products for the Seat/seat Cowl include: Base R Rr Grab Ra, Rail Comp*nh437m*, Washer,seat Lock, Socket Bolt,8x32.
The Bolt-washer,6x12 is the lowest priced item on this Seat/seat Cowl schematic.