The Top Plate and Screws are for Electric Wheelchairs,
This Plate has 6 Screw on plate bottom and 2 on the 90 degree Side.
Its located on the gearbox of the electric Wheelchair
This is to join the gearbox of the Electric Wheelchair to the Frame of the Chair.
This can be Used on various models.
Most are the same, but please test and see before fastening.