Is the 1/2" diameter an inside or outside measurement? The downrod we are trying to replace with a longer one appears to be 3/4" or maybe even 13/16" outside diameter and 5/8" inside diameter.A. The Emerson CFDR1 is measured at 1/2" as the outer diameter.
Why is the downrod unthreaded? How does it attach to the fan?A. The Emerson CFDR1 is unthreaded because it locks together with a pin.