The rail stanchion bases are cq where manufactered by Jukova.com in Finland.
Info i found on this forum. I thought.
There web info on old products is little rusty.
So you have to call them.
There is no bolt that goes into the deck.
I guess you need the S-97 or the S-98.
I’m interested in the costs.
We have repaired several bases on our NC35 with Helicoils.