Abstract: A highly accurate method of tensioning threaded fasteners into assembled units is presented. A mechanical process for locating the initial point that a threaded male fastening unit enters into the female fastening unit provides a definite reference point from which angular movement of the fastener can be digitally measured with the greatest accuracy. Accurate measurement of angular rotation of a threaded unit into a receiving unit provides a direct relationship to allow an accurate measurement of the tension applied to the fastener inside the recess. Multiple fasteners can be randomly indexed to start at the zero point and be driven into the receiving unit with equal tension in each fastener in timed increments of rotation during the entire process of driving the fasteners into the fastened unit. A digital printout of the process certifies the reference numbers of all components assembled and timed movement activity of each of the assembled components.

Abstract: A highly accurate method of tensioning threaded fasteners into assembled units is presented. A mechanical process for locating the initial point that a threaded male fastening unit enters into the female fastening unit provides a definite reference point from which angular movement of the fastener can be digitally measured with the greatest accuracy. Accurate measurement of angular rotation of a threaded unit into a receiving unit provides a direct relationship to allow an accurate measurement of the tension applied to the fastener inside the recess. Multiple fasteners can be randomly indexed to start at the zero point and be driven into the receiving unit with equal tension in each fastener in timed increments of rotation during the entire process of driving the fasteners into the fastened unit. A digital printout of the process certifies the reference numbers of all components assembled and timed movement activity of each of the assembled components.

Abstract: A method of inserting a threaded fastener having a threaded portion into a fastening element having a threaded recess. The method includes the steps of positioning the threaded portion of the threaded fastener at an entry point of the threaded recess and rotating the threaded fastener in a counterclockwise direction causing the thread on the threaded portion to ride up the thread within the recess. The counterclockwise rotation is continued until a termination point of the thread on the threaded portion has passed a termination point of the thread within the recess, detection of such passing is determined by axial movement of the threaded fastener into the recess.