I would go with the recommendations, that hinge is laid into cut out grooves and once there it needs to stay corrosion free. I primer every piece of metal on my plane with zink primer to prevent corrosion. Unless its the same thing , the piano hinge may be stainless, make sure its heavy duty enough for that application, remember any joint of motion is a potential fail point, I wouldn't drive a car with a thread rod for a steering rod and a car can stop on the side of the road, there is zero room for error in the air. |