Box building question

Buy 2 , 2.5" long bolts, cut the heads off so its just threads, , then drill 2 holes in your box for them to stick through, put a washer and a nut on the inside, and hook your wire up to it with a ring terminal, and do the same on the outside.  That way you have a very solid terminal that you can disconnect with the twist of a wrench, or a wing nut.