If you are performing an O.E. level restoration you will need original fasteners from a car, and not only that, from a car that came from the same plant, and was built around the same time as your car if you want to get as close to correct as possible.

AMK is a good vendor and they sell SOME of the factory style fasteners for SOME applications, but they, just like all of the other "new" fastener vendors, are a bit generic when it comes to specific applications. If you want convenience and new fasteners that are "close" to correct, AMK is the best I know of.