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Is there a diff between a hex head and a allen head?

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Old 10-02-2002, 09:19 AM
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Default Is there a diff between a hex head and a allen head?

They are both six sides?!?! I got some bolt sizes, and they were stated in both hex and allen types.
Old 10-02-2002, 10:31 AM
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Default Re: Is there a diff between a hex head and a allen head?

A hex is a standard bolt, you would use a wrench on(external hex). An Allen is a bolt you would use a Allen wrench on(internal hex).
Old 10-02-2002, 10:34 AM
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Default Re: Is there a diff between a hex head and a allen head?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by nthnwbr:
<strong>A hex is a standard bolt, you would use a wrench on(external hex). An Allen is a bolt you would use a Allen wrench on(internal hex).</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Explain this to me then: <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">
From Rob Moser on T/A performance cover:

The bolts on the performance covers are as follows:

Cover Bolts, Main Cap Load Bolts, and Drain Plug - 1/4" allen head

Fill Plug - 1/2" allen head

Nuts on Load bolts - 3/4" hex head
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">- The socket set I got from Home Depot (to fit inside the bolts like an allen wrench) are called Hex heads. So basically there is no difference..

<small>[ October 02, 2002, 10:51 AM: Message edited by: Gary ]</small>
Old 10-02-2002, 11:01 AM
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Default Re: Is there a diff between a hex head and a allen head?

Hex head when referring to a wrench = allen wrench style.
Hex head when referring to a bolt = 6 or 12 point head requiring a open end/box end wrench, or socket.
Old 10-02-2002, 01:26 PM
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Default Re: Is there a diff between a hex head and a allen head?

As the others have pointed out - generally an allen head bolt/screw will be a cap screw with an internal hex (i.e. requiring an Allen wrench to install/remove). A hex head bolt would be one that has your standard 6-point head. A double hex would be a 12-point. These would require your standard socket or combo/open end wrench to install.

Here's a link showing different nuts and bolts and stuff, which may help clarify: http://www.absofast.com/
Old 03-06-2016, 10:46 AM
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Default Ajaxbolt and nut manufacturer and distributor of hex and stud bolt

You can find further information about bolts and nuts and the standards on the following website

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Old 05-16-2017, 08:05 AM
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You can find further information about Air Curtain and the standards on the following website

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Old 05-16-2017, 08:06 AM
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You can find further information about bolts and nuts and the standards on the following website

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Old 05-16-2017, 08:13 AM
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Holy 15 year old thread!!!!!!!!!!
Old 05-19-2017, 08:14 PM
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Originally Posted by 01ssreda4
Holy 15 year old thread!!!!!!!!!!
Spambots digging up **** lol.



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