I have an older Bianchi mountain bike frame that I am turning into a tourer. The frame didn't have anything covering the holes where the water cages and racks are installed, so I decided to place some screws in there to keep out water until I get the cages and racks. When I got to the braze-ons in the seat stays, the screw on the right side slid all the way in and on the left side, I was able to screw it in, but it seemed very loose to me.
Is there a different size screw that these take or are they stripped? I am assuming they are stripped, since the screws went into the braze-ons on the dropouts correctly. If they are stripped, is there a way to fix this? I guess someone could tap them again to a slightly larger size, but I am unsure if the tool could get there. But, if it is possible, what size should I get these tapped? If tapping is not possible, I guess the only other option would be p-clamps? I know p-clamps are not the best option, but since it has braze-ons on the dropouts would there be much if any difference in strength. I am assuming the strength comes from the dropout clamping and the seat stay braze-ons are mostly for stability.