Parts such as the Rear Brake Caliper: Support, Pad, Bracket, Caliper, Disc, Rear Brake 2, Brake Pad Kit 2 (nas) are included in the Tz125 2000 4jt7 Usa 104jt-100e1 Rear Brake Caliper parts fiche.
On this parts fiche the Bolt, Hexagon Socket Head(3sx) is the most specified component.
The most expensive part in this assembly is the Caliper Assy, Rear 2.