Abstract: A pipe joint has a tubular retainer for inserting pipes to be coupled therein, a joint body fitted over the retainer and having a socket holder, and a tubular socket movably disposed around the socket holder. When connecting the pipes to each other, the pipes are inserted into the retainer and positioned therein, the joint body is fitted over the retainer, and the socket holder is brought over the socket holder until the socket is held against a positioning member on the socket holder. A spring in a positioning groove in the socket holder is resiliently displaced radially outwardly partly into a smaller-diameter recess in the socket while partly remaining in the positioning groove, whereupon the socket is retained on the joint body against removal.