Anchor Swivel, which locktite?

[penberth3]

So it's conclusive then:

Bin the swivel, or
Tighten it up properly, or
Use Monel wire, or
Use blue Loctite, or
Use red Loctite, or
Use green Loctite

Any suggestions for purple Loctite ?

Go on then, I'll take the bait. Dip the shackle pin threads in gloss paint, any colour will do. Downside - a bit messy and you should really leave it a while to dry.