Cover mounting assembly for electrical junction box

A cover mounting assembly for use in an electrical junction box comprising a junction box body and a cover mounted thereon to cover it, the cover has a locking rod suspended from its one side wall so as to extend substantially in parallel relationship therewith, and the junction box body has a locking rod holder formed integrally therewith and which is comprised of a pair of holding pieces in which the locking rod is fitted detachably and in such a manner that it can be turned, the locking rod having a projection formed thereon and adapted to abut against the upper part of one of the holding pieces of the locking rod holder when the cover is opened, said locking rod holder having an opening formed therein in the direction that the locking rod is turned about the point of abutment.