Quick help please! Lower ball joint thread size

[MMM2003]

Hey:

Worked on replacing my front shocks and brakes over the weekend. When trying to remove the lower balljoint connection the allen head seat stripped out when the nut seized up. Couldn't move it either way, even though it was already 3/4 off. Ended up cutting the nut off with a dremel.

I didn't have a caliper available, but we used a 13/16" wrench for the hex to remove the nut. I can't find the matching thread size for that size hex nut. Does anyone know or could find out what thread size the lower ball joint on our cars has? It appears to be a fine thread (metric?).

I'll eventually will have to replace the whole ball joint, but for now I just need to get my hands on a replacement nut.

Thanks in advance for any help!

Peter aka MMM2003

[MMM2003]

FYI It's UNF 9/16-18 fine thread. Got a new hex nut from Fastenal and put some loctite on for good measures. The original nut with the concave washer is still holding everything tight, the new nut is just for backup. Eventually, I will replace the whole lower ball joint.

Thanks for looking. Hope this helps someone in the future.

Peter aka MMM2003