Abstract: A connector for connecting non-metallic sheathed cable of both the round and oval types to electrical boxes in which the connector is of all plastic, one piece construction, free of clamps and screwing, and comprises a ring shaped segmented body defining a collet like cable gripping portion comprising a plurality of pairs of opposed resilient jaws in which the jaws each comprise a finger having a split base portion projecting from one end of the body and a jaw head directed laterally of and toward the body axis such that the jaw heads are grouped together, collet fashion, in spaced apart relation. The collet jaws are shaped to integrally connect together the body segments for reducing the diameter of the body for application purposes, and the jaws are formed for snap fit mounting of the connector in a knock-out opening of the box, they being arranged to be sprung apart to accept and pass the end of a cable being thrust through the connector for reception in the box.

Abstract: An electrical wiring box holder arrangement of the type shown in Esoldi U.S. Pat. No. 3,184,191, for screwless mounting of the box and wallboard in a box receiving opening formed in the wallboard for that purpose, in which the E shaped holder members that are applied to opposite sides of the box are formed and processed in application so that the holder member center leg and the holder member back portion aligned therewith are shaped to define a centrally located dihedral wall bracing structure that acts in the nature of a girder on being wedged between the side of the box and the wallboard back face, with the box being firmly gripped between the resulting dihedral wall bracing structures of the respective holder members when installation is completed.