For plaster walls, use a 3-inch screw in order to be certain that at least 2 inches of the screw threads bite into the stud. Q: I am trying to hang a 75-pound mirror on a brick wall. I have 100 ...

So before starting your project, make sure that you consider the wall type, nail length and thickness, and frame weight of the picture or mirror ... to hanging pictures on cement or brick walls ...