210 rear camber fitting

[rc10fan]

Hi guys just started building my 210
when i get to the building the rear camber link for m44 set up it says to insert the 2 plastic spacers into what i assume the wholes in the rear alloy hinge pin holder, but the plastic spacers are to large to fit inside. Am i doing something wrong ? also i assume as it has so many options the screws it says to use are counter sunk not cap head and the chassis holes are not counter sunk ?

cheers