A picture hanger for use with gypsum board comprises a strip of steel bent into a V to provide two legs. The first leg is arcuate and functions as an anchor upon insertion into the gypsum board. The second leg is straight, with a hook at its terminus for hanging pictures and the like. An installation tool is provided which enables the arcuate anchor leg to be driven into the gypsum board along an arcuate path corresponding to the arcuate anchor leg until the second leg is held firmly against the surface of the gypsum board.