Help to find normalized kind of bushing for a screw. [OFF TOPIC]

Hi,

Sorry but i don´t know where to put this topic, unfortunelly I don´t know where i can find a normalized bush, that can you see on the attachement. Can someone help me, giving the name of this part, or a seller? This bushing allows to the part fixed rotate, and the screw is always fixed.

Thanks for the help

SolidworksGeneral