A stay includes a first-bolt hole portion fastened to a body frame by a first bolt, a second-bolt hole portion fastened to a subframe by a second bolt, a recessed portion disposed between the first-bolt hole portion and the second-bolt hole portion and recessed downward, and a cutout portion continuous with the first-bolt hole portion and formed by cutting out a part of the recessed portion. The dimension of the recessed portion in its depth direction is equal to or larger than the dimension of the head portion of the first bolt in its height direction. The widthwise dimension of the cutout portion in a direction perpendicular to an axis of the stay is set to be smaller than the largest outer diameter of the head portion of the first bolt.