On this parts fiche the Nut-hex-small is the most specified component.
ten components are listed in the schematic for this Kaf400-daf Mule610 2010 Usa / 4x4 Xc Muffler(s) .
Some items from this specific schematic: Washer,8.5x20x1.6,bla, Gasket (nas), Bolt-flanged,8x30, Body-comp-muffler.