The component with the lowest price in the 10A - HALF-CRANKCASES PAIR schematic is the Washer, Special 10.5x21x2.
On this parts fiche the Screw is the most specified component.
This schematic depicts all components used in the Superbike 2016 My16 (superbike 1299s Abs) D220-00016 10a - Half-crankcases Pair partslist.