On Fri, 22 Jul 2016 07:57:03 -0700 (PDT), bob_villain
wrote:

I use these, rated up to #10 copper. You can easily make 6 connections each, without a hassle.
http://tinyurl.com/jrqzy9f

If you are using the side screw and also the 2 back wire ports, you
have violated the listing. They are only listed for one or the other,
2 wires per terminal max using the back wire or one per screw.