Metal rework box

[Knuckle Dragger]

Those are handy when you need to adjust to the thickness of the finished wall.
I found that the screw slot has to be pushed way back if I want any chance of installing a Leviton USB duplex receptacle in it.

 

[electrofelon]

If you can use a pvc box, this one from Arlington Industries, model F101, can be placed and screwed onto the stud in a manner similar to a pocket screw
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Yes those are great. Actually what is even better is the allied molded version. It's got a "slider" plate so you can adjust the depth easier. I try to use those as much as possible when doing old work. It takes a little more time to locate the studs for new locations in plaster and lath but is well worth it IMO.

 

[electrofelon]

Here is a link to the allied ones

SLIDERBOX® Adjustable Wall Box Assemblies | Allied Moulded Products

www.alliedmoulded.com

 

[Little Bill]

Whatever you call them this is what they look like. We use them only when we must use a metal box.

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You will never get this into a wall or box unless you break it apart!