http://www.licensedelectrician.com/Store/RT/Romex_Connectors.htm

Tom Two Way (above) is suitable for ½" knockouts, and installs from inside or outside the box

TT-500

Every service truck should have some.

https://www.youtube.com/watch?v=hd6mKBGUlrQ

This Garvin product can also be installed AFTER the Romex has been pulled through the KO.

1) Pull in Romex
2) Insert Garvin gadget around the Romex...
3) Sliding it up towards the KO
4) Because of the flex built into the grip...
5) You can get away with forcing the Romex + Garvin up into the KO
6) Where it click-snaps into place.

While rated for two Romex (regular way) it is wise to only attempt the above trick with a single Romex in the connector. (You need the extra play.)

Like the TT-500, the Garvin accepts Romex in the conventional manner, too.

&&&

I first spotted 2-G handy-boxes in Home Depot and Lowes. They are not a box popular with commercial electricians.

I submit that they are a better solution for 2-G cut-ins whenever you can place them directly adjacent to a stud. They lie flat and anchor easily.

Perfect depth is easily had by installing scavenged yoke parts from old switches into the handy-box such that they flare AWAY from the box and out onto the sheet rock. These temp attachments leave the interior free for TEK screws or their like to anchor to the stud. (3-point hold)

The result is a rock solid attachment -- with the trims perfectly aligned.


Tesla