In one aspect, a holder mountable to a friable substrate may include a self-drilling anchor, a wall engaging flange having an opening for receiving a fastener, and at least one leg extending from the flange for holding an object. In another aspect, a holder may include a self-drilling anchor, a wall engaging flange, and a pair of U-shaped legs for holding an object. In still another aspect, a holder may include a self-drilling anchor, a wall engaging flange, at least one leg extending from the flange for holding an object and a recess for receiving a rotary driver. A pair of openings may be provided in the flange for receiving a threaded fastener.