So I have never seen this and no luck finding it…when using EMT as a raceway for mechanical protection of a supplemental bonding conductor for ex. ½”C with a #6AWG ground I was looking to see if I could find a ground hub / choke to be used at each end of the conduit however everything I have found [oz/gedney, etc.] the hubs are threaded. Is it possible, common acceptable [UL?] to thread EMT, I could not find a similar product with set screw type connection? Any assistance is appreciated…