Should you put loctite on bracelet screws?

[Perrinyanna]

When i bought my Sub LV from a rolex AD and had it re sized the sales person pulled out a wooden rolex toolbox and removed some links. When he got the correct number of links to be removed he got loctite or thread locking glue inside the tool box. He said its necessary to ensure screw will not work itself out. Is this needed? I think this is the first time i saw someone used thread locking glue on links screw? I think he even over tightened it and gouge a bit the screw head ??