Rod holders

[dcobbett]

I tried to remove one of the original rod holders in the gunnel of my 1976 20’SF the other day and all I got was spinning threads. Didn’t feel mushy, felt more like there might have been nuts spinning against washers, but I can’t imagine the holders were installed prior to the liner being installed. I don’t want to drill the fasteners out or cut access ports if I don’t have to. Has anyone removed them and know how they are fastened in place?