Road clipless pedals on stationary and spinning bikes

I Googled this question and no one seemed to have the correct answer, so I'm posting this in hopes of helping people out. Spinning and stationary bikes have 1/2 inch threads, and road/mountain bikes have 9/16 inch threads. The easiest thing is to use some 1/2 inch threaded clipless pedals, but no one seems to know that these are available. Wellgo makes some in SPD, more info here. The E-14 is the one you'll find on the better spinning bikes. Finding them might be tricky though - local bike shops that carry Wellgo (pretty much everyone!) should be able to order them easily enough though.