In a word YES.
I use them all the time.
I drill the holes in the hull or superstructure, trim the stanchions about an inch longer than the deck, assuming they will fit inside the hull/superstructure.
Push fit into the holes, if its a straight run fit the rails afterwards, if a bent or complex shape bend the rails to fit first and slide on to the stanchions.
When stanchions push fitted to the holes and guardrails fitted I use a jig for the height and ensure they are upright then solder every joint.
It sounds time consuming but it isn't.
This produces a very strong unit and as all my holes aren't drilled exactly square I dint fix in permanently, the friction between stanchion and deck holds them in firmly.
I have had these rails bent over at 90 degrees before and pulled them out and straightened them.
I also use a liquid flux to ensure the solder flows inside the stanchion without leaving an unsightly "blob".
I have used this method down to 1/12 scale and it works fine.
Bob