Replying to FKS hardware

just picked up a second pair of 155s from an undisclosed online location for VERY cheap haha.  however, the racer i bought them off didnt realize that the screws go with the bindings and not the plates.  question for intelligent NSers or binding techs...

has anyone brought FKS screws to a hardware shop and been able to match them up with any other screws?  is the consensus that this will or wont work?  and accordingly...anyone have any fks hardware i could take off their hands for some sort of compensation?