Screw terminals to ring terminals

[Kemmer]

Are there any type of studded copper adapters that can convert a screw down terminal such as a breaker to accept a ring terminal?

Any suggestions for terminating larger gauge 2awg (35mm2) stranded cable in screw terminals? Ive been searching for larger ferrules, but have found crimpers

 

[AZ Solar Junkie]

I have this ferrule kit - which has ferrules for AWG 12, 10, 8-7, 6-5, 4, 2, 1/0, 2/0, and this crimper which will crimp the larger AWG 6/4/2 cables. For smaller wires, this crimper supports AWG 28-5. If you need to crimp even larger wires, I have only run across this one that supports the large AWG 1, 1/0, 2/0 and 3/0 cables.