Abstract: In an improved junction box for housing cable connections or the like including in combination a receptacle adapted to house cable connections or the like and having an opening thereinto; a closure lid for releasably closing said opening, said closure lid presenting an aperture therethrough for the coaxial registration therewithin of a screw threaded connector for connecting said closure lid to said receptacle, and a locking terminator coaxially overlying said aperture outwardly of said closure lid which threadedly lockingly co-operates with the screw threaded connector in the region remote from said receptacle so as to isolate access to the screw threaded connector and releasably secure the closure lid to the receptacle; said locking terminator requires a special key so as to allow it to be removed from said screw threaded connector.