For aluminum connectors, a typical torque range is between 8 and 12 Nm (Newton-meters) for M6 bolts and between 15 and 20 Nm for M8 bolts. . Torque is a measure of the force that causes an object to rotate. In the context of photovoltaic bracket connectors, it's the amount of force you need to apply when tightening the bolts or screws to secure the connectors in place. If you don't apply enough torque, the connectors might come loose. . Please refer to the below chart for the appropriate torque specs. Do NOT tighten with impact gun. Proper torque is essential to ensure that everything stays in place and. . These torque tubes act as drive shafts, motorized to control the angularity of solar panels and optimize energy capture by following the sun"s movement across the sky.