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-   -   Purpose of square black washer on outlet cover screws? (http://www.diychatroom.com/f18/purpose-square-black-washer-outlet-cover-screws-9969/)

darsunt 07-17-2007 11:36 PM

Purpose of square black washer on outlet cover screws?
 
I recently removed lots of electrical covers to do some painting. I noticed that almost all of the screws for the covers have a tiny square black washer on them. I was careful to reinstall the cover screws with these washers.

Is there some safety purpose behind these square washers?

slakker 07-18-2007 01:59 AM

As far as I can tell, it's not for safety but rather to keep the screws attached to the outlet so it's not lost... especially when it's new out of the box or in the bin at the store... I've also seen them attached with little rubber grommets..

joed 07-18-2007 04:49 PM

Never seen them on covers, but on actual receptacles and switches they are used to keep the screws in place.

troubleseeker 07-20-2007 10:27 PM

Quote:

Originally Posted by joed (Post 53474)
Never seen them on covers, but on actual receptacles and switches they are used to keep the screws in place.

Ditto.. a big convenience for electricians installing a whole house full of devices.


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