some of these ideas to snip the 8 down in size and to make a somewhat physical connection are dangerous if you hope to pass any amount of current across that marginal connection. It will become a high resistance (hot) short and will impede the current flow.
How are you going to know that the strands you cut away on one end are still in use on the other end? You need an electrical connection that is made of a physically stout connection that is not loose, impaired or faulty by design.
buy the appropriate "bug" or "lug" dependent on the size wires or a terminal strip for that wire you want to use and do it correctly. Anything else is going to fail in short order and you will spend a lot of time,money and blame trying to find where the problem is.