I found a thread over on RWI but it wasn't the same one. Anyway, the author bought these similar ones from Ofrei, Jules Borel, Startime, and Ebay. I just hopped onto Ofrei and they have them but on one side there is a double pin. Like a pin within a pin. No shoulder, so they function the same, but just that different look. Like what you posted above but only on one side. They are 1.8mm but the pin diameter is .9mm instead of 1.2mm.
There was another site where I saw them but I'm just not able to find the link. You had to buy 10 bars but they were exactly the same as the 2mm bars. Same pin diameter.