In this schematic the "Nut 6mm" is used most often.
A sample from the products for the 015 Head include: Nut 6mm, Vertical Exhaust Camshaft, Vertical Intake Camshaft, Pin.
The twenty-four Sbk999 2005 Usa (superbike 999) 9151-1642c 015 Head component parts are all listed in this schematic.