Patent ID: 7017952

Claim:
A flow bolt for conducting fluid from adjacent a bolt head to a free end of a bolt shaft comprising: a) an elongated shaft and a torque applying head, the head being formed unitarily with the shaft on one end of the shaft; b) the shaft including a plurality of shaft sections between the head and the free end of the shaft and being substantially solid along its entire length; c) a first one of the sections comprising an externally threaded section adjacent the free end of the shaft; d) a second one of the sections comprising an unthreaded cylindrical section with a smooth outer surface between the threaded section and the head; e) a plurality of longitudinally extending grooves formed into the threads of the threaded section and into the outer surface of the cylindrical second section; f) the plurality of shaft sections includes a third unthreaded section between the second unthreaded section and the head; and g) the third unthreaded section being disposed immediately adjacent the head and having a smooth cylindrical surface with a diameter greater than the diameter of the cylindrical second shaft section.