Use ring terminals for the speaker wire, and put it through the bolts. Use the wing nuts on the outside of the box so you can take off the wire or what ever, and fasten the leads from the amp to the bolts on the outside of the box with ring terminals on the speaker wire.
If you have them, before the wing nuts, put a threaded washer type thing (I don't know the actual name) up next to the box, and tighten the bolt as tight as you can, then you don't have to worry about the bolt falling out when you mess with the wing nuts.