With a quantity of four pieces, the Screw,flat,5x4.5 is the most used part in the REAR FORK/CHAIN CASE diagram.
Some items from this specific schematic: Bolt,flange,6x20, Guard,chain, Bolt,flange,6x40, Collar,chainguard.
Of all the components that make up this Rear Fork/chain Case the Screw,cross 5x8 has the lowest price.