A sample from the products for the Clutch-torque Converter include: Cover,clutch Case, Disk Comp,frictio (nas), Bolt,flange,6x12, Flywheel Comp.
In this schematic the "Bolt, 12mm" is used most often.
The lowest price component in this Clutch-torque Converter parts-list fiche is the Bolt,flange,6x12.