The most reasonably priced component used on the Cb1300a 2008 (8) France / Abs Cmf Fuel Tank is the Washer,plain, 6mm.
A sample from the products for the Fuel Tank include: Packing,base, Joint,tube, Bolt,tank Hinge, Hose Comp,fuel Fe.
This FUEL TANK assembly utilises eight Nut,flange,6mm(s) - the highest specified component.