the 680 has no terminals just 6mm female threads.
i dont think you will find bolt on terminals in jap size unfortunately, i have never seen them and have looked a couple of times. the best way is to cut off the terminals and get some proper crimp lugs fitted, (an auto electrician wouldnt charge much to do them) heres a picture of how mine looked with lugs (its not the same battery and there are some extra terminals for the old audio system.