I'm not certain if the sedan and coupe share the same radiator specs, but I've been looking for the size of the bolts that hold the top of the fan shroud to the radiator and haven't been able to find anything. Called a dealership and apparently they're generic machine screws, not a Nissan part. Does anybody know the thread measurements on those screws? Specifically the one under the radiator cap, finally replaced my broken fan shroud and need a screw for it.