With a quantity of two pieces, the Washer,spline is the most used part in the M 10 diagram.
A sample from the products for the M 10 include: Gear,ct/shaft Low, Shaft,main Trns., Seal,11.6x24x10, Sprocket,drive.
The most reasonably priced component used on the Cf50 Chaly Germany M 10 is the Bolt,hex 6x8.