#8 Wire Splice

Note how the number 10 bare copper ground wire is shaped in the rear of the generator inlet box and then wrapped around the green ground screw using the included clamp.

Note how tightly twisted together the #8 wires are before the blue wire connector is screwed on.

You can see the 10/3 Romex as it penetrates through the drilled hole in the rim joist in order to come into the back of the generator inlet mounted outside.
Here's a close shot of two Ideal 30-454 Wing-Nut Blue Wire Connectors being used to splice short pieces of #8 copper wire to the existing stove feed wire. This was necessary in order to relocate the existing stove circuit breaker down a few spaces to make room for the generator circuit breaker.