twenty-three components are shown in this Trx500fe Fourtrax Foreman 2010 (a) Australia / Ec Crankcase exploded diagram.
On this parts fiche the Bolt,flange,6x40 is the most specified component.
A sample from the products for the Crankcase include: Bolt,flange,, Set,crank Case Rr, Screen,oil Filter, Drain Cock.