Do all metal boxes need screw-in clamps?

Verdeboy · Sep 20, 2007

I spent about $8.00 on a metal ceiling fan box, but it didn't come with any screw-in clamps. Does that mean it is not required, or do I have to supply my own? The Romex cable is stapled up to a few inches of the opening in the box.

Is a screw-in clamp required whenever a cable enters or leaves any kind of metal box--be it for a light switch, outlet, light fixture, or junction box?

Speedy Petey · Sep 20, 2007

Verdeboy said:
Is a screw-in clamp required whenever a cable enters or leaves any kind of metal box--be it for a light switch, outlet, light fixture, or junction box?

SOME sort of clamp IS required. Whether it be integral to the box or separate.

With a metal box something needs to secure and protect it.

Sponsor · 2022-01-29T12:20:58-0800

Frenchie · Sep 20, 2007

Verdeboy said:
Is a screw-in clamp required whenever a cable enters or leaves any kind of metal box--be it for a light switch, outlet, light fixture, or junction box?

Far as I know... yes.

At less than a dollar apiece, why's it matter?

Must be even less, where you are, since you got the fan box for 8 - fan box costs almost 20 up here.

edit: dang, I just answered an electrical question from Eric, didn't I?

Verdeboy · Sep 20, 2007

frenchie said:
edit: dang, I just answered an electrical question from Eric, didn't I?

See, that wasn't so bad.

More to come. I like doing electrical stuff. It's nice, clean work (unlike other trades I can think of) and you get to use your brain a lot.

snafflekid · Sep 20, 2007

did you buy a handybox or something similar that has knockouts for those threaded nipples?

KD · Sep 21, 2007

Most jurisdictions allow the use of plastic grommets, bushings, if you staple within 8 inches of the box.

Do all metal boxes need screw-in clamps?

Verdeboy

In the Trades

Speedy Petey

Licensed Electrical Contractor

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Frenchie

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Verdeboy

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snafflekid

Electrical Engineer

KD

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