Sorry to hear about your misfortune.
1) I guess what you're posting about are Rough Country adjustable control arms?
2) Were they brand new out of the box or maybe not so new but never installed, just sitting around somewhere damp for quite a while?
3) Was "somewhere damp" just leaning against the outside of the garage while "quite a while" was all winter?
4) Or were they used and came off your buddies TJ that was on it's way to the scrap yard due to major frame rust?
5) Why are the possible scenarios related to my questions just getting worse?
FWIW, questions 1 and 2 are the only decent questions. Questions 3, 4, and 5 are just me passing the time. Answers to any are welcome.