Can you help identify these button nuts? Are they T related?
Assorted top iron prop nuts. The fancy ones for more expensive cars.
Ford uses a plain black finish prop nut.
I have seen some prop nuts very much like those, they were of smaller diameter than the ones used by Ford. I suspected that they were used on horse drawn buggies.
Those are aftermarket. I've also noted two different thread sizes for prop nuts.
The prop nuts on my '07 Autocar are the same as the two at the bottom of the picture.