I'm replacing a failed Hunter ceiling fan with another fan that was given to me. The Hunter had a 3/4" down rod with a threaded end which went into a threaded female fitting on the fan. My new fan has a 1/2" threaded male stud coming out of the top of the fan. Unfortunately, the new fan has no brand name or model number on it. Does anybody know of a 3/4" to 1/2" threaded female adapter that would enable me to connect the two?