I have a small section of the wall where I need to fix hanging tiles (red clay Victorian tiles). There are no battens and the other tiles are fixed with nails going into the brick. I can’t find any nails that can penetrate the brick and hold the tiles , i tried different types and size. Is there a specific type of nails or a particular technique to fix the hanging tiles on a brick wall using perhaps adhesive or cement and in this case, is it ok not to have the tile mechanically fixed with a nail? I would be grateful for any advise and guidance !