I have a house built in 1947, and the sanitary lines are all cast iron. In one bathroom, the flange has a broken bolt for the toilet connection. The bolts appear to have been leaded in with the flange. In other words, there is no slot to insert new bolts like I see in most new flanges. Was this a normal practice? If so, where would I get a new bolt to lead in? How was it typically done?
The flange is in good shape other than the one broken bolt however it is about 3/8" below the current floor due to an remodel. It seems too bad to replace it just because of the bolt, but I could do that. If I did, I see two types of replacement flanges. One seals on the inside of the pipe, and one on the outside. It seems like the type that seal on the outside would be better in this case because the inside of the pipe is pretty rough. I could lead in a new flange as well if I could find one, but it seems like replacing the bolt is the best bet if I can figure out how it is done.