This is a set and forget job so don't use release on anything.
I do like the steel bed, that is Devcon steel,for this job as it is black, and I like to heat it up a bit after it is mixed with a heat gun after mixing so it flows well.
Work the glue in well, put in the sleeve, screw the nuts up and clean the excess off with a rag soaked in alcohol while it is soft, no cleanup required later
I also do not consider it a set and forget job. I have seen them rusted terribly and in need to inspection and replacement.
Fortunately, epoxy breaks down quickly and easily with heat... I use an old car body soldering gun for the task.