Grounding A Metal (outlet) Gang Box Question

The code is very specific on how Equipment Grounding Conductors (EGCs) are to be terminated. You have to use a machine screw that is threaded into a tapped hole in the box itself. A wood screw that is threaded into the wood behind the box will not keep predictably constant pressure on the EGC do to the expansion and shrinkage of the wood with changes in it's moisture content. The code also requires that a suitable connector must be used to splice the EGCs. just twisting them around each other is no enough.

-- Tom H

Tom,

Is the Ideal In-Sure push-in connector suitable? These are shown at:

Ed

Jag Man posted for all of us....

They are UL CSA listed so they should be.

Only summerized as a responser to your post, please read the code for more accurate information:

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So imho, you cannot use a screw that also works as a means of anchoring the box to the wood stud.

hth,

tom @

Also can use (NEC) "a listed grounding device" such as a ground clip.

Bud--