A wired drill string assembly, comprising a plurality of drill pipes extending from a surface into a wellbore. The plurality of drill pipes comprising a coaxial wired transmission line. The assembly comprising a downhole tool comprising a body having a first threaded connector and a second threaded connector, the first threaded connector being connected to one of the plurality of drill pipes. The downhole tool including one or more electrical components comprising a sensor coupled to the body and a signal transmitter configured to transmit a signal representing a measurement taken by the sensor. A first coaxial transmission line extending along the body and electrically connected to the coaxial wired transmission line and with the one or more electrical components. The first transmission line is electrically connected to the transmission wire by a first physical electrical contact on at least a portion of a first removable connector thread flank.