i always see frames 3/16 dropouts and others with 4mm, 5mm, ect ect. I always presume 3/16 was thin but im not 100% sure. I went ahead and divided the 3/16 and got 0.1875 hen converted that into mm and got 4.7625. If the math is correct does that mean 3/16 dropouts are thicker than frames with 4mm dropouts? The thought just occured to me earlier to me and I don't think i did the math right. I just want to be 100% sure so don't prejudice frames or forks labeled with 3/16 dropouts for when I choose a frame or fork or whatever