In this schematic the "Screw" is used most often.
The lowest price component in this Rear Swinging Arm parts-list fiche is the Washer(12.5x20x1).
A sample from the products for the Rear Swinging Arm include: Bolt(10x39), Washer(12.5x20x1), Plate,rr Swing Arm Brkt, Spacer(6.2x8.3x6.1).