Parts such as the Freno Posterior: Support, Pad, Protector, Shim, Caliper, Bolt are included in the Xg250 2005 4d61 Norway 1d4d6-352s1 Freno Posterior parts fiche.
On this parts fiche the Screw(3gd) is the most specified component.
The Xg250 2005 4d61 Norway 1d4d6-352s1 Freno Posterior consists of sixteen pieces with the Caliper Assy, Rear 2 being the most expensive.