lumbermill: Sir; you need to get a 'switch' and find that imb***le .
Snug or snugness with a little drop and I mean little drop of 'Loc tite'
You are using the loctite for concussion displacement or as a buffer between the thread and bolt.
I cannot see the 'crack' or 'split' ordinarily; looking with a magnifying glass or trying to see the backside for splitting.
Back to the loctite I cannot remember with is the least bonding; use the least bonding; 1 drop might be way way too much.
Follow up with your experiences. The SRH