BATTERY POST TERMINAL ASSEMBLY

A battery post terminal is restrained from deforming more than necessary. A battery post terminal assembly (1) includes a battery post terminal (10) including a grasping portion (21) capable of grasping a battery post on an inner side, and a fastening portion (31) placed in a form of a pair to extend from end portions of the grasping portion, a holder (40) placed on one side of the fastening portion (31), and a base member (50) placed on an opposite side to the holder (40) with the fastening portion (31) between the holder(40) and the base member (50). The base member (50) has a base seat portion (52), a screw shaft (51) that is provided on one surface of the base seat portion (52) to be coupled to the holder (40), and a projection portion (54) that is provided on a surface having the screw shaft (51) of the base seat portion (52), and to project to an inner side of the fastening portion (31) when coupled to the holder (40).