You can get the hardware for the Curt Trailer Hitch Receiver # C11435 by ordering our Replacement Hardware Kit # RHK and putting the hitch number in the appropriate field. This will give you the hardware for the receiver to mount on your 2016 Mazda MX-5 Miata. It is difficult to find all the components for this installation locally as it requires square hole spacers to fit the carriage bolts inside the frame rails.
I have linked the installation instructions for the receiver below which... view full answer...