Spreadable anchor assembly

A spreadable anchor assembly, adapted to be fixed to an opening of a wall or the like, comprising an elongated tubular sleeve having opposed open ends and being formed with inner threads at the region of one of said open ends while being formed with longitudinally extending slits extending along said sleeve from the other of the open ends thereof to define spreadable legs between said slits, said sleeve being formed with an inner tapered opening at the region of said spreadable legs thereof and having adhered to said one open end in a position extending across and closing said one open end of said sleeve a cap of easily ruptured sheet material which has an inner surface directed toward the other open end of said sleeve, and an elongated tapered spreader element adhered to said cap at said inner surface thereof and situated in the interior of said sleeve, so that a punch may be applied to said cap to rupture the latter while driving said spreader element into the inner tapered opening of said sleeve to spread said legs thereof outwardly into engagement with the surface of an opening which is formed in a wall or the like for anchoring said sleeve thereto, the rupturing of said cap and the driving of said spreader element into the tapered opening to spread said legs uncovering the inner threads so that a screw may be received therein.