ECN Forum Forums Code Related Discussion NEC & other Code issues Need opinion

George: If you let Bob use the clamp hole, what section will you site for requiring the green screw? The only places the words "green" and "screw" appear in the same paragraph of the code are for main bonding jumpers and for device terminals.

Your right I am overfull, it is 12 AWG.

I did not have two identical deep boxes handy.

Red Tag for me.

Bob

Let's call it a compromise- I didn't ask him to use the ground screw hole and he he is willing to use a green screw (I hope). Bob already told us the box was overfilled, I guess that's why he went for the clamp screw hole. He has achieved "eqivalent objectives" asked for in 90.4 Plus Bob did give us some nice graphics and I liked that.

George: What section will you cite for the green screw?

I didn't quote any section Ryan, I just used what I call a fair approach because you are right there isn't any precise wording that says "You must use a green screw for connecting the equipment grounding conductor to the outlet box" Let's use the materials made for the job. When you buy an outlet box with a ground screw in it - it's green. When you buy a box of ground screws from the supply house- their green. A person wouldn't go to the supply store and buy a box of 10/32 galvanized screws with the intent of using them for ground screws. I have yet to see a product made in the US that has a grounding terminal or a ground screw that wasn't green. GROUND SCREWS ARE GREEN. Would you use a green screw to terminate an ungrounded conductor? No. Green screws are for equipment grounding conductors.

And Ryan, don't make me resort to 90.4 or 110.2 or 110.3. I'm not kind of inspector.

George,
Why should we buy a new green screw and waste resources when the clamp screw will do the job just fine? There is no code requirement that says this screw must be green.
Don

Maybe green screws are better conductors . I will say the green screws have a bigger head on them which allows for more contact between screw and wire. But I see no problem with a properly installed wire under a cable clamp screw. I've used them before and I've also used regular fine thread screws I've dug out of the junk bin.

I use Raco metal boxes & none have a G or a GR stamped by the 10/32 ground screw hole. 1900s have a raised dimple but no G or GR.

This is ridiculous.