Of all the components used in this assembly the Arm Assy,swing is the most expensive.
On this parts fiche the Bolt,flange 6mm is the most specified component.
A sample from the products for the Swingarm (cbr1000fk) include: Collar,b.pivot., Nut,hex.,8mm, Bolt,flange 6mm, Dust Seal,22x35x7.