The most reasonably priced component used on the Cb600fa Hornet 2010 (a) France / Abs Cmf 25k Fr. Brake Master Cylinder (cb600fa/fa3) is the Screw,flat,4x12.
A sample from the products for the Fr. Brake Master Cylinder (cb600fa/fa3) include: Cap,m/c., Stay Comp,r Fr Br, Oil Bolt,10x22, Protector.
In this schematic the "Washer,oil Bolt" is used most often.