The Bolt,flange,6x35 is the cheapest item from this partsfiche.
This E-9 diagram displays the required parts for the Crf50f 2011 (b) Japan Ae03-210 (jdm) E-9.
Some items from this specific schematic: Cover,l.crankcase, Bolt,flange,6x28, Bolt,flange,6x35.