Battery HOLDDOWN: Description
WARNING: This page is about a different car, the 2006 Dodge Sprinter. However, it is still accessible from the selected car via links, so may be relevant.
The battery hold down hardware includes two hex nuts with washers and two hold down brackets. The battery hold down brackets are formed of stamped steel. The hold down assembly is coated for corrosion protection.
When installing a battery into the battery tray, be certain that the hold down hardware is properly installed and that the fasteners are tightened to the proper specifications. Improper hold down fastener tightness, whether too loose or too tight, can result in damage to the battery, the vehicle or both.