Make the hole slightly deeper than the anchor's length. Bore on your marks using a hammer drill and a carbide-tip masonry bit sized to suit the plastic screw anchors. Obviously, those screw holes have to be level. If not, make two marks for the pair of screws from which the box will hang. Your first step is to use a Sharpie or a carpenter's pencil to mark the location for the screws for the box's mounting bracket, if there is one. How do I do that?-Connie C., Pine Bush, New York I want to mount a mailbox on the side of my brick house.
