A connector that electrically connects circuit boards to each other by fitting a header and a socket to each other, the connector including: header holding fixtures for holding the header to the circuit board; and a socket molded article as a molded article of the socket, wherein recessed portions with a recessed shape are formed on the socket molded article so that soldering terminals of the header holding fixtures cannot interfere with the socket molded article when the header and the socket are fitted to each other.