Things that make you go huh. Odyssey added a side terminal adaptor to the PC625 battery. Not a good change with my battery box. Removing the post nuts proved the only thing holding the added cooper piece was a rivet, so I decided to drill them out. These are the softest rivets ever and it appears they’re plastic. Easy removal of the post adaptor and easy clean up of the rivet with a utility knife. Plastic rivets? Very odd.