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What is it?

04/17/2011 8:24 PM

OK,

First, I'll try to describe the object. If I have to, I'll take a picture.

It's a solid, machined steel piece. 2 3/4 inches long. The top 3/8" is 5/8" hex head. Then, there's 3/8" section machined down to about 5/8 OD, about the same diameter as the flats on the hex section.

These sections are drilled and tapped for a 5/16 or 3/8 female machine thread.

Then, the rest is machined into a self tapping wood screw of about #12-14. The un-machined OD of this section is 3/16". This section is 2" long, giving the impression that it is screwed into wood. The upper 3/16" of the screw portion is un-threaded as a wood screw would be.

I have no clue what to call it, or I search for it.

What is it?

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#1

Re: What is it?

04/17/2011 8:41 PM

Where did it come from? (or, what are you doing that requires it?)

Does it look like a mass produced item or a custom made "one off"?

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#2

Re: What is it?

04/17/2011 8:42 PM

I have no clue what to call it

Sounds custom-made.

Best you post some pictures for clarification. What's it for?

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#3

Re: What is it?

04/17/2011 9:06 PM

Strictly curiosity. Found it in my front yard. Don't know where it came from. There are 3 kids here, 3 next door and 3-5 who come to visit the cul-de-sac daily, so it could have come from anywhere.

It's definitely machined, I'd guess in quantity.

Guess I'll take a picture.

Note the self tapping feature in the first picture.

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#6
In reply to #3

Re: What is it?

04/17/2011 10:22 PM

Maybe these guys?

http://www.erico.com/products/hangermate.asp

Have a nice walk, Ky.

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#7
In reply to #6

Re: What is it?

04/17/2011 10:31 PM

That's it. The middle one in the right hand group.

Nice job, I still don't know where they are used, except for attachment.

Clever, whatever it does.

Cheers.

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#10
In reply to #7

Re: What is it?

04/18/2011 7:34 AM

It's an anchor for hanging light loads from 3/8" rod to be screwed into wood. Allows the ease of use of most industry standard hangers made for 3/8 all thread.

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#13
In reply to #3

Re: What is it?

04/19/2011 9:31 AM

We use them for hanging conduit, piping and fixtures from roof and ceiling joists. The threaded rod goes into on of the threaded holes in the head after the other end is screwed into the wood. Or that is what the construction industry in my area uses them for.

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#14
In reply to #13

Re: What is it?

04/19/2011 9:39 AM

Seems logical to me.

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#4

Re: What is it?

04/17/2011 9:36 PM

Looks like a specialised version of a "Tek Screw".

Tek screws come in different styles to suit the application, usually they're used to screw roofing iron to purlins. But theyre (ab)used in other ways because they're machine fitted with either a power drill or specialised power driver

http://selftappingscrews.org/tek-screws-specifications

http://www.efl.bz/pdfs/datasheets/tekmetalframedatasheet.pdf

http://en.wikipedia.org/wiki/Screw

http://www.grade1fasteners.com.au/Online-Product-Catalogue/Hitachi/Power-Tools/Hitachi-Power-Tools/Hitachi-8mm-Tek-Screw-Driver-Model-W8VB2.html

Now Ive either given you an answer or led you up the garden path...

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#5
In reply to #4

Re: What is it?

04/17/2011 9:47 PM

None of the above, but it was a nice walk.

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#8

Re: What is it?

04/17/2011 11:39 PM

The visible male threads look like wood screw threads, for going into wood joists/beams. The other end looks like female machine screw threads, for extending all-threaded rod to pipe or fixture supports, or whatever. These are sometimes called "rod hangers."

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#9
In reply to #8

Re: What is it?

04/17/2011 11:46 PM

Yep. Somehow, I've never seen one of these till today. This one's 3/8" female.

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#11

Re: What is it?

04/19/2011 5:18 AM

Among other uses: for easily fitting, and, removing table legs.

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#12

Re: What is it?

04/19/2011 8:16 AM

It is a lock puller made to use with a slide hammer to open safety deposit boxes.

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