Parts such as the Front Brake Hose: Bolt 6x20, Union, Hose,fr Brake No.1, Bolt are included in the Gsx600f 1995 (s) (e02 E22 E25 E34) Front Brake Hose parts fiche.
The Washer(10x15x1.5) is the lowest priced item on this Front Brake Hose schematic.
In this schematic the "Washer(10x15x1.5)" is used most often.