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 having a drilling portion longer than a drywall
thickness followed by a high-threaded portion, a wall engaging flange,
and at least one leg for holding an object. In still another aspect, a
holder may include a self-drilling anchor having a screw-like drilling
portion longer than a drywall thickness followed by a high-threaded
portion, a drywall engaging flange having a recess for receiving a rotary
driver and a pair of openings each capable of receiving a threaded
fastener and engaging threads thereof.