Why are drywall screws black?

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On Sat, 26 Aug 2006 17:56:26 GMT, "Leon"

Besides that, all the drywall screws I saw at the BORG were "Made in China," or "Made in Taiwan." Fasteners made in the USA, Canada, or Germany are very good.
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Haven't bought any screws from the Borg for years -- do they still twist off at the slightest over-torquing? I think I just threw my last batch out a few months ago when I found them. Trying to use them was not worth the hastle; I'd have more twist off than would drive in correctly, and I'm not a ham-fisted sort of person.
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wrote:> Haven't bought any screws from the Borg for years -- do they still

On occasion we've used the Deck Kings from the Borg only because it saved us the drive to Circle Saw. I can't recall but a few of them ever twisting off.
--
"New Wave" Dave In Houston



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wrote:

Now that you mention it, I have used their deck screws for our son's swingset. They seemed to work OK. It's their woodscrews that have given me grief, and most lately, I've had problems with their bolts as well.
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The black oxide coating on DW screws and other hardware is very cheap and gives a small amount of corrosion protection.
--

Larry Wasserman Baltimore, Maryland
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So you know it's quitting time when you can't see the screws.
duh............
Steve ;-)
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snipped-for-privacy@hotmail.com wrote:

... are they made of a special alloy which makes them black?\
When these screws were first introduced, it was as a high-tech item, using stronger steel than nails, and having improved resistance to pull-out. And, the 'black' coating was black chromium (very durable, intended both for corrosion resistance and for surface hardening). Because they were a clear improvement, they caught on.
Some non-black coatings (zinc chromate and galvanized) are getting common.
I doubt if all the black coatings are black chrome, there are cheaper black (black phosphate) coatings. When they were a 'new' item, though, that tough black chrome finish was a selling point of these fasteners.
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