The Nut,flange,8mm is the lowest priced item on this Clutch Master Cylinder schematic.
Of all the components used in this assembly the M/c Assy,clutch is the most expensive.
A sample from the products for the Clutch Master Cylinder include: Pipe B Comp,clutch, Clip, Brake Hose, Clamp D12,tube, Seal,m/c.