US Patent 11384540 Timber beam end connection using embedded mechanical fastening

A beam connecting system uses a threaded connector rod and a mating connector, for example a nut, for mounting the end of a wood beam against the upright supporting surface of a supporting body. The connector rod protrudes from the upright supporting surface of the supporting body to be received in a fastener bore extending longitudinally into the beam from the end face of the beam. A transverse access bore which intersects the fastener bore receives the mating connector to form a mechanical connection to fasten the end face of the beam against the upright supporting surface. A wood plug encloses the access bore such that the mechanical connection is fully embedded in the beam and supporting body so as to be surrounded by wood material, and thus be protected from elevated temperatures in fire condition.