Same with ours but I first had it done in the BVIs after the rivet holes were getting elongated.
Then, in Martinique in 2016 they placed the backing pieces and switched me out from hex head bolts to theAllen head ones.
I've had to tighten them two or three times in 3 years. I don't use locktite but I have used the tef-gel ... not sure why except that I'd rather have to "tend to torque" and avoid any dissimilar metals problems.
SM 299, Adagio