A connector includes a terminal, and a housing having a housing chamber for housing the terminal. The terminal includes a wire connection portion and an electric contact portion. An axial direction of the electric contact portion is a front-back direction crossing a vertical direction along which the wire connection portion and the electric contact portion are arranged in a row. The electric contact portion is formed in a tubular shape with a first wall portion continuing to the wire connection portion, a second wall portion facing the first wall portion, a third wall portion interposed between the first and second wall portions, and a fourth wall portion in the wire connection side and facing the third wall portion. The housing includes a locking arm. A claw portion of the locking arm catches a border portion between the second the fourth wall portions.