I recently broke one of the two speed levers ajuster (friction screw) that adjust the pressure between the levers and the cable. It's made in plastic as shown in the picture below. I would like to know if someone know the real name of this part and if I can find it somewhere. I have looked on internet but cannot find anything.
Otherwise, maybe someone could have an idea of a part that could replace this one. It's sitting around (and in the back) of a 8 size hexagonal head.
Any help is greatly appreciated. Thank you.