To make one cut the head off a long 1/4″ bolt. With the grommet on the bolt you can spin it in a drill and using a file or sanding block to size the grommet to fit. You need the shoulder so the grommet doesn’t go so deep it blocks the hole. As long as the grommet fits tight to the tube it wont go anywhere. Buy a couple as it may take a few tries to get it just right. It does me anyway. Tubs
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
