Whats the cleanest way to exit a sub box?

What is the cleanest way to exit a sub box with out using a terminal because you will be able to see inside of the box when i'm done... I'd like to exit the box the cleanest non visiable way possible... any ideas? Home made binding posts?

I used two Machine head Bolts....Made two holes in my box....On the outside I tightened a nut onto the bolt...Then put my connector on then put another Nut on to secure it....The Machine head bolt looks pretty cool inside the box...

If you wanted to get really slick with it cut the heads off some more machine head bolts and Glue them to the inside of the box to make it look as if you have bolted the whole thing together...

Making the World A Louder Place