S30 tie rod nuts
I forgot to mention this back when I owned an s30 (240z, 260z, or 280z), but Datsun wheel lugs are threaded exactly the same as tie rods. That means that in a pinch, you can use a lug nut to hold a tie rod on.
I wouldn’t recommend keeping them installed for long periods, as the factory castle nut has a cotter pin securing it. I never ran into a problem with them, but I checked and re-torqued mine regularly.
Small tricks like this could save you a lot of time and effort if you ever break a component on the side of the road and need a way to limp home.