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Old 03-20-2010, 06:17 PM   #1
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What screws for plastic box?


I have a few of those blue plastic electric junction boxes that I need to put covers over, but they didn't come with screws... what kind of screws can I fit into these?
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Old 03-20-2010, 06:22 PM   #2
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probably 8-32
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Old 03-20-2010, 06:32 PM   #3
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Typical coverplate screws are 6-32.
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Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
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Old 03-20-2010, 08:50 PM   #4
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If the box is a round type, as commonly used for ceiling lights, then an 8-32 screw would be appropriate.

If the box is rectangular, as used for wiring devices (switch, outlet, etc) then a 6-32 screw is what you will need.

I have successfully used coarse thread #6 drywall type screws in both type of boxes ...
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Old 03-20-2010, 09:06 PM   #5
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Quote:
Originally Posted by kbsparky View Post
If the box is a round type, as commonly used for ceiling lights, then an 8-32 screw would be appropriate.

If the box is rectangular, as used for wiring devices (switch, outlet, etc) then a 6-32 screw is what you will need.
2:
and if they are 4" square boxes, they would use 8-32.
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