With three applications this Bolt, Flange (5f7) is the most specified part.
A sample from the products for the Middle Drive Gear include: Bolt, Flange (5f7), Shim, Pinion (0.15t), Housing, Bearing, Washer, Plate (24w).
The seventeen Yfm80n 1985 Moto-4 Middle Drive Gear component parts are all listed in this schematic.