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Old 10-18-2008, 03:18 PM   #16
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Stripped Phillips Head


I use Robertson screws in galvanized and S/S sheet metal, using a drill/driver. On occasion, I do mess up the head. Sometimes I can grab the head with vise grips, sometimes not.

I do not know if this story is true or not. Mr Robertson appproached Henry Ford about he use of his screws. Ford, realizing that if those screw were found in Ford cars, that Robertson's produt would be very popular in other application. Ford asked for a royalty payment based upon every screw sold to other companies. Robertson turned Ford down. Ford used Phillips screws instead.

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Old 10-19-2008, 07:31 PM   #17
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Stripped Phillips Head


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Originally Posted by fireguy View Post
I use Robertson screws in galvanized and S/S sheet metal, using a drill/driver. On occasion, I do mess up the head. Sometimes I can grab the head with vise grips, sometimes not.

I do not know if this story is true or not. Mr Robertson appproached Henry Ford about he use of his screws. Ford, realizing that if those screw were found in Ford cars, that Robertson's product would be very popular in other application. Ford asked for a royalty payment based upon every screw sold to other companies. Robertson turned Ford down. Ford used Phillips screws instead.
I have heard the same story. I think that Henry did use the Robertson screw, but had falling out with Robertson, for some reason.

"
Canadian Peter L. Robertson, a 27-year-old traveling salesman, patents a square-shaped socket-head screw in 1907; Ford cars in Canada use the Robertson screw in their manufacturing process
American businessman Henry F. Phillips develops the cruciform (cross) style socket-head
The Phillips screw is used in the assembly of the 1936 Cadillacs
Phillips becomes the industry standard. By the 1960s more than 200 manufacturers license the socket screw
Meanwhile, the Robertson screw is used by American furniture makers, craftsmen and hobbyists. The company is bought- out in 1968 by a U.S. conglomerate. "
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Old 01-20-2009, 06:07 PM   #18
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Stripped Phillips Head


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Originally Posted by buletbob View Post
I have to agree, I also like the square drive over the phillips. I can not re-call if I ever did strip a square drive screw head.
I stripped a RObbie screw head...it is round now...
any help on how to remove it? please? thanks
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Old 01-20-2009, 07:15 PM   #19
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Stripped Phillips Head


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I stripped a RObbie screw head...it is round now...
any help on how to remove it? please? thanks
Its easy! Just drill into the head with a drill bit the same size as the screw shank! When its drilled down to the shank, the head pops off! Then remove what was held by the screw, then grab it with Visegrips and wind it out!
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Old 01-20-2009, 08:10 PM   #20
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Stripped Phillips Head


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Its easy! Just drill into the head with a drill bit the same size as the screw shank! When its drilled down to the shank, the head pops off! Then remove what was held by the screw, then grab it with Visegrips and wind it out!
ok, I did that (thanks!)...I used the "easy out" tool...well, now the scew (the headless screw) is in the wood....
I need that scew hole to be free of screws.
how can I now get the the headless screw out? it is protruding through the wood
about 1/8"...I tried using vise grips but cannot turn it..
the screw diameter is about 1/8"...will my extractor work on this? I heard that I can slice a slot across it (with a whirly blade or something like that).....then I can use a flat head screwdriver and twist it out like a regular flat head?
thoughts???
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Old 01-20-2009, 09:05 PM   #21
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Stripped Phillips Head


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ok, I did that (thanks!)...I used the "easy out" tool...well, now the scew (the headless screw) is in the wood....
I need that scew hole to be free of screws.
how can I now get the the headless screw out? it is protruding through the wood
about 1/8"...I tried using vise grips but cannot turn it..
the screw diameter is about 1/8"...will my extractor work on this? I heard that I can slice a slot across it (with a whirly blade or something like that).....then I can use a flat head screwdriver and twist it out like a regular flat head?
thoughts???
see photo...I am trying to pull out this headless screw that is embedded in the wood...I need the screw hole..I cannot use another screw hole..thanks
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Old 01-20-2009, 09:18 PM   #22
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Stripped Phillips Head


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Originally Posted by buletbob View Post
I have to agree, I also like the square drive over the phillips. I can not re-call if I ever did strip a square drive screw head.
is a dremmel an easy tool to use? any thoughts on how I can get leverage with my vise grps?
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Old 01-21-2009, 05:47 AM   #23
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Stripped Phillips Head


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Originally Posted by wilsonfrench View Post
see photo...I am trying to pull out this headless screw that is embedded in the wood...I need the screw hole..I cannot use another screw hole..thanks
That's not a bad idea with the hole saw, Are these two separate pieces of wood?? if you do go ahead with the hole will these pieces be able to come apart?? if so then you could use the vise grips to remove the remaining screws.
is there some sort of bracket that gets fastened to the screws? if so your idea would work providing you pre-drill the dowel once its glued in .
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Old 01-21-2009, 06:14 AM   #24
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Stripped Phillips Head


did you get it out yet? perhaps if you chiseled down a hair to allow the visegrips to grab?
once i split a board, removed the screw and then glued the thing back together again. you couldn't see the glue line.
just a couple ideas.....

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Old 01-21-2009, 12:01 PM   #25
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Stripped Phillips Head


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did you get it out yet? perhaps if you chiseled down a hair to allow the visegrips to grab?
once i split a board, removed the screw and then glued the thing back together again. you couldn't see the glue line.
just a couple ideas.....

DM
no. I have not got the screw out yet....I tried chiselling around it, but cannot get any chisel in there to burrow out a space around the screw so that I can grab it with my VGs....
could I use a screw extractor to screw into the top of the shank (1/8") and then use the extractor (the same way I did with the screw head)?...
like I said, I am trying to twist it out with VG's, but not having any luck getting a good grip...and when I do get a good grip...when I twist it counter clock-wise, it doesn't budge!

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