The Guide,valve (over is the most widely applied product in the CB1000RA 2010 (A) ENGLAND / ABS MPH CYLINDER HEAD ( sixteen times ).
The Nut,square,5mm is the lowest priced item on this Cylinder Head schematic.
Some items from this specific schematic: Bolt,flg.,6x39.5, Gasket,cylinder H (nas), Head Assy,cylinde, Pin,dowel,8x20.