seventeen components are listed in the schematic for this Xl100k3 U.s.a F-11-1 Helmet Holder - Seat .
A sample from the products for the F-11-1 Helmet Holder - Seat include: Bolt,hex 8x20, Seat Comp., Rubber,seat Sett., Rubber,stay Mount.
In this schematic the "Nut,hex 6mm" is used most often.