I try to use thin harden flat washers with thin head bolts, make sure the clutch anti chatter springs don't touch the bolt heads after torqueing before using it that way
Just adding photos for reference since I am in the middle of trying to undo numerous mistakes on a car I bought last year.
Even without washers they bolt heads can hit... the previous owner tried to add clearance by using a hand grinder on the heads of the flywheel bolts, but it was not enough.
