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#86606 - 11/15/03 06:55 AM Ground screws
GTE Offline

Registered: 03/26/03
Posts: 48
Loc: Bridgehampton, N.Y. USA
Do ground screws used to to ground metal boxes have to be listed & do they have to be green?

2014 / 2011 NEC & Related Books and Study Guides
#86607 - 11/15/03 08:29 AM Re: Ground screws
Ryan_J Offline

Registered: 08/19/03
Posts: 1355
Loc: West Jordan, Utah, USA
No. I think they are very handy to use and I installed my share of them, but they are not a requirement. you do have to bond the boxes (250.148), but in my opinion as long as you do not use a sheet-metal screw, you are fine.
Ryan Jackson,
Salt Lake City

#86608 - 11/16/03 03:06 AM Re: Ground screws
russ m Offline

Registered: 02/22/03
Posts: 165
Loc: Burbank,IL,USA
Just to add to Ryans answer, for the people that might not of crossed this before.
250.8 prohibits the use of sheetmetal screws for grounding.

#86609 - 11/16/03 03:28 AM Re: Ground screws
iwire Offline

Registered: 01/05/03
Posts: 4343
Loc: North Attleboro, MA USA
I will add that many times people get hung up on 250.126 Identification of Wiring Device Terminals.

This article says the ground screws on devices must be green.

Article 100
Device. A unit of an electrical system that is intended to carry but not utilize electric energy.

250.126 has nothing to do with the screws used for grounding anything else.
Bob Badger
Construction & Maintenance Electrician


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