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Joined: Jul 2004
Posts: 129
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Today I was hanging a front poarch light on a friends house. The screws that mount the fixture to the mounting bracket were to long so I cut them off and tried to screw them into the bracket and they would not fit. No problem I got anouther 8/32 it would not fit ether both 8/32??? WRONG.It seems that the mounting screws were 4mm. Now I have been an electrician for 30 years and this is the first time I have seen metric screws on a residential light fixture. Now I have seen european process equipment that'sto be expected but residential lighting??? I guess we are going to have to get metric screw cuters now. Has any one else run across this. THANKS HYPRESS
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Joined: May 2003
Posts: 2,876
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Yep, all those high end LV hand blown glass too expensive for my house jobs. My favorite is metric mounting plates, holes are set wider than 3/0, and smaller than 4/0.
Mark Heller
"Well - I oughta....." -Jackie Gleason
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Joined: Aug 2003
Posts: 173
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I run across tham all the time. They are in many of the cheap crap Chinese fixtures sold in the big obnoxious stores.
Now I have nothing against the Chinese, or any other race, but the quality of their products is terrible.
Speedy Petey
"Anyone who has never made a mistake has never tried anything new." -Albert Einstein
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Joined: Dec 2003
Posts: 886
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If you can use a regular screw (it's not a fancy brass thing) just run the 8-32 part of your triple tap through the hole. Then it will be 8-32.
You do carry a triple tap don't you?
-Hal
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Joined: Feb 2003
Posts: 60
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Gotta luv those tripple taps.... don't leave home without one myself.
-Greg
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Joined: Aug 2001
Posts: 7,520
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We have a similar problem here in England.
Around 1970 the electrical industry switched to metric, adopting 3.5 mm threads on device boxes. Prior to that, device fixing screws were 4BA (BA = British Association).
The diameter and threads look pretty much the same at first glance, but are not interchangeable. As there are still plenty of 1950s/60s boxes in use, it's annoying to find the screws supplied with a modern outlet or switch don't fit the old boxes.
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Joined: Jun 2003
Posts: 1,143
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Reminds me of "Chinese Standard Thread"
Usually 8.25 / 32 or thereabouts...
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Joined: Feb 2003
Posts: 687
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I call those chinese 8/32. There just metric. What I hate is when you have those chinese 8/32 trim nuts. You can't tap it out cause it's not deep enough.
Maybe the rest of the world hate those american screws. They say why are they so fat?
Tom
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Joined: Dec 2003
Posts: 886
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Those are nice Doug. Solves the problem of having to have a tap drill and a tap. Everybody should have at least a 10-32 for those times you need to install a ground screw.
Gotta get them myself!
-Hal
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Posts: 46
Joined: May 2007
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