Well, I get .807" Maj. OD on the male
threads, but that falls right between 3/4" and 7/8"
Perhaps 13/16th?
Pitch seems to mesh with x-32 bolts, so my best guess is its a 13/16-32
thread.
edit: But these things are cut on a lathe, as it seems, so the
thread could be entirely custom dia. Just a FYI..
