Transfer case nut size

What thread pitch are the t-case nuts? I blew the pass side engine mounts and had to remove the xmember to fix and I forgot to put them back on. Tryin to put on a new RE X duty kit but I need them for the adapter plate...

Should be 3/8"-24. Check around at your hardware store for them.

SAE Grade 8 nuts are not necessary - SAE5 should be fine, and easier to find than CRES (which would be preferred.)