The Bolt,flange,8x40 is the cheapest item from this partsfiche.
A sample from the products for the Front Brake Caliper include: Caliper Sub Assy,, Bush,pin, Bolt,flange,8x40, Boot B.
The nineteen Xl600v Transalp 1999 (x) Italy / Kph 34p Front Brake Caliper component parts are all listed in this schematic.