The Bolt,knock,7x12 is the most widely applied product in the CB400ND 1984 (E) NORTHERN EUROPE CAM CHAIN - TENSIONER ( two times ).
The component with the lowest price in the CAM CHAIN - TENSIONER schematic is the Washer Seal, 6mm.
A sample from the products for the Cam Chain - Tensioner include: Chain,cam, Base,tensioner, Nut,cap,6mm, Bolt,knock,7x12.