Abstract: The present apparatus acts to lock removable roof panels, commonly associated with automobiles and the like, in place as a protection for example, against the theft of such panels. The system involves one or more bars each having two ends and a lock device. One end of each bar is adapted to be fastened or secured to one of the roof panels. The other end of the bar is adapted to be temporarily secured to the fixed roof portion of the vehicle by the lock device. With the lock device in place, the roof panels are secured in place. These panels can be removed by opening the lock device.