Bushing for lead-acid battery and lead-acid battery

A bushing (A) for a lead-acid battery includes: a cylindrical bushing main body portion () that can be fitted to a pole (); and a columnar terminal portion () located at a position offset from the bushing main body portion () in plan view, in which the terminal portion () includes: a pedestal portion () integrally coupled to the bushing main body portion () via a coupling portion; and a connecting portion () which is located on the pedestal portion () and to which an external terminal is connected, and in which the pedestal portion () has a recessed cavity portion () on a bottom surface of the pedestal portion ().