That's it!!!! The unique characteristic of this screw is a metal cylinder between the threading and the head, allowing the rod to have some free play and slide back and forth 1/4 inch or so.
So it appears the bar is the now discontinued 72501-60020..... I'm still trying to figure out what to do about the missing specialty screw, a screw with a cylindrical shaft to allow travel.
I've got a Dec 1994 FZJ80 with manual seats and am fixing a failed recline mechanism on my front passenger seat. The online part diagrams don't seem to match what I've got.
Each seat uses two recline mechanisms similar to the 7251090K02 shown below. There's a bar between the two recline...