Abstract: A strap winch device assembly for fitting on a flat bed open truck trailer, to enable a truck driver to remote actuate this load tightening system without leaving his truck cab, in periodic fashion. A number of these winch devices are connected to a single fore and aft drive shaft, which extends along the side of the trailer. The drive shaft is driven by a motor to tighten any straps that loosen when the trailer is in motion over the road, as trailer load distribution typically shifts during road trailer, due to road-induced vibrations. A clutch mechanism is provided in the winch device, to prevent the motor from overheating once a set tightening torque threshold level has been reached.