I plan to have a safety cable that connects the tongue to the other side of the coupler in addition to the standard X safety chains to the bumper.
Debating about just throwing a tack weld on the nuts also to prevent them from ever coming lose.
Maybe tack weld a big washer on the threaded end but in the center of the washer so you can disassemble and re-assemble without too much hassle?
JPK