Sensor mounting plate measures 10” x 4.5” x 13/16” stainless steel screws are 316 marine grade
Used to install, remove or adjust the sensor for optimal performance of the fish locator
The best method is Use a high quality marine adhesive on the back, drill a small pilot hole, coat the screws with the same adhesive, then caulk around the board and finally caulk the top of the countersunk screw hole