Abstract: A non-metallic housing for electrical and/or telephone connectors having wires extending therefrom. The housing includes a cap having a pair of separable externally threaded portions defining an aperture therebetween. Each portion carries a part of the thread of the threaded portion and together form a circumferentially continuous external thread when in engagement with one another. When the separable portions are spaced from each other, the connector wires may be passed therebetween and positioned in the aperture of the cap. Threaded engagement of the externally threaded portion of the cap with the threads of a corresponding internally threaded opening maintains the separable portions in contact with one another so as to cover the opening while permitting the connector wires to extend through the aperture of the cap.