Check out any of the thirteen Fenders ('81 -'82 Kz750-e2/e3) components enlisted.
Some items from this specific schematic: Front Fender,luminous Gun Blue, Fender-comp-rear,fr, Bolt-hex,head 8x16, Bolt Upset,6x16.
In this schematic the "Bolt Upset,6x16" is used most often.