The staff here is so incredibly helpful! I called Auto Zone to ask whether or not they carry a specific nut (gave them size and everything) and they refused to tell me on the phone. They were telling me I had to bring my car in just to let me know if they have the nut... I called O'Reilly, they not only had it but they even helped me install it on my car battery. I'll never go to Auto Zone again. O'Reilly all the way now.