Method for simultaneous tightening of industrial threaded fasteners with an operation parameter regulation unit for use with a bolting system (100, 200, 300) having a plurality of networked electrically powered torque tools and/or drive portions of torque tools for simultaneous tightening of industrial threaded fasteners, the operation parameter regulation unit including: a processing unit; an output unit connected and/or integrated with the processing unit; an input unit connected and/or integrated with the processing unit; an activation unit connected and/or integrated with the processing unit for activating operation units of the plurality of networked electrically powered torque tools and/or drive portions of torque tools; and a control unit for controlling operation parameters of each of the plurality of networked electrically powered torque tools and/or drive portions of torque tools to maintain a difference between the operation parameters within a predetermined value, including two or more sensor units for direct and/or indirect measurement of the operation parameters of either: the plurality of parts of a joint to be closed; or the plurality of networked threaded fasteners, characterized in that the two or more sensor units are bolting application separation gap sensors arranged equally distantly from one another and the method comprises the step of - measuring the relative distance between the two parts of the joint to be closed using the bolting application separation gap sensors and - maintaining a difference between bolting application separation gap distances measured by the two or more bolting application separation gap sensors within a predetermined value by means of the control unit, or the two or more sensor units are bolting application fastener load cells arranged adjacent a plurality of threaded fasteners, and the method comprises the step of - measuring the fastener tension value using the bolting application fastener load cell and - maintaining a difference between fastener tension values within a predetermined value by means of the control unit. a processing unit; an output unit connected and/or integrated with the processing unit; an input unit connected and/or integrated with the processing unit; an activation unit connected and/or integrated with the processing unit for activating operation units of the plurality of networked electrically powered torque tools and/or drive portions of torque tools; and a control unit for controlling operation parameters of each of the plurality of networked electrically powered torque tools and/or drive portions of torque tools to maintain a difference between the operation parameters within a predetermined value, including two or more sensor units for direct and/or indirect measurement of the operation parameters of either: the plurality of parts of a joint to be closed; or the plurality of networked threaded fasteners, characterized in that the two or more sensor units are bolting application separation gap sensors arranged equally distantly from one another and the method comprises the step of - measuring the relative distance between the two parts of the joint to be closed using the bolting application separation gap sensors and - maintaining a difference between bolting application separation gap distances measured by the two or more bolting application separation gap sensors within a predetermined value by means of the control unit, or - measuring the relative distance between the two parts of the joint to be closed using the bolting application separation gap sensors and - maintaining a difference between bolting application separation gap distances measured by the two or more bolting application separation gap sensors within a predetermined value by means of the control unit, or the two or more sensor units are bolting application fastener load cells arranged adjacent a plurality of threaded fasteners, and the method comprises the step of - measuring the fastener tension value using the bolting application fastener load cell and - maintaining a difference between fastener tension values within a predetermined value by means of the control unit. - measuring the fastener tension value using the bolting application fastener load cell and - maintaining a difference between fastener tension values within a predetermined value by means of the control unit.