Parts such as the E-16: Bolt,flange 6x90, Pin,knock,12x16, Bolt,flange,8x40, Bolt,cyln,10mm are included in the Sl250s Japan E-16 parts fiche.
The E-16 is made up of components including this Crankcase (upper) which is the most expensive.
With a quantity of four pieces, the Bolt,cyln,10mm is the most used part in the E-16 diagram.