Overtightened EGT Probe
 

So I installed an EGT probe yesterday and everything seemed to go fine, however once I got up to 12 PSI boost I had a high pitch whistle. I went back under and tightened up the probe some and got to 17 PSI boost before the whistle started. So I tried again and it felt like the bolt stripped out. I was able to get it to connect again, but it feels like its only connected by the last few threads, and I get the whistle at 10 PSI boost now. I was thinking maybe using some JB weld or thread sealeant but I cant find anything that will withstand those kinds of temperatures. Any ideas?