Is anyone aware of a place, preferably a physical store, that sells flag nuts?
What are you trying to buy? Fordparts.com can show you the part numbers for every nut and bolt on the car. For suspension stuff I would go with OEM or aerospace grade 12.8 fasteners.
JScheier said:If you have a Fastenal in your area... they should have them. Grainger may as well.
TymeSlayer said:Fastenal sucks. I highly doubt your local store would have this specialized part. fordparts.com would be the place to start and go from there. Get the part number and google the crap out of it 'till you find it. Did I mention that Fastenal sucks?