This is a multi-part message in MIME format.
--===============3153274384619994003==
boundary="------------A410F023F053DC433DC36B42"
Content-Language: en-US
This is a multi-part message in MIME format.
--------------A410F023F053DC433DC36B42
Content-Transfer-Encoding: 8bit
Thanks for the correction, Curt. I'd always wondered why 'posidrive'
screws were used--I think posidrive is a relatively recent
development--and why regular phillips drivers worked in them (I think
posidrive has a steeper angle of the screw blades). I have a posidrive
screwdriver, but I usually grabbed whatever was handy. Do you know of a
source for the correctly marked screws?
Do you know if the backing flat washer was tapped (I don't think so, but
I'm not sure). IIRC there is a tapped plate that binds the
screws--again, chromed--that attach the rearview mirror.
Bob
On 3/22/2021 7:59 AM, Curtis Arndt wrote:
> Hi Bob and Joe,
>
> Just a quick correction, "Pozidriv " screws were never used on AH
> 100s, BN1/2s.
>
> The four marks on the head of these 10-32 screws were there to denote
> UNF from "Whitworth" during the changeover to the Unified screw thread
> forms in the 1950s.
>
> I've attached a page from my vintage Machinery's Handbook which
> illustrates this fact.
>
> Cheers,
>
> Curt
>
> On Sun, Mar 21, 2021 at 11:27 PM Bob Spidell <bspidell@comcast.net
>
> I neglected to mention the screw is backed-up with a large, extra
> thick flat washer (because of the large hole in the bracket). It's
> unique because it's as thick as a couple of typical flat washers
> and /might--/I don't recall for sure--be tapped for the screw.
>
> On 3/21/2021 10:21 PM, Bob Spidell wrote:
>> Yep. And, the original screw is chromed posidriv, with a slightly
>> oversized--the screw is a #10 IIRC--chrome washer. I noted this
>> when we tore down our BN2 for restoration, and promised myself
>> I'd not lose these. I lost them (and have never found proper
>> replacements).
>>
>> You can sorta see them in this grainy photo (I /shoulda/ took more).
>>
>> Bob
>>
>> On 3/21/2021 4:14 PM, Joseph Costa wrote:
>>> Does it just attach to the brace behind the dash?
>>>
>>> Joe
>>> BN1 #923
>>> BN2 100M
>>> BJ8 Blue Baby
>>>
>>
>>
>> _______________________________________________
>> Support Team.Nethttp://www.team.net/donate.html
>> <http://www.team.net/donate.html>
>> Suggested annual donation $12.75
>>
>> Archive:http://www.team.net/pipermail/healeys
>> <http://www.team.net/pipermail/healeys> http://autox.team.net/archive
>> <http://autox.team.net/archive>
>>
>> http://autox.team.net/mailman/listinfo/healeys
>> <http://autox.team.net/mailman/listinfo/healeys>
>>
>>
>> Unsubscribe/Manage:http://autox.team.net/mailman/options/healeys/bspidell@comcast.net
>> <http://autox.team.net/mailman/options/healeys/bspidell@comcast.net>
>>
>
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> <http://www.team.net/donate.html>
> Suggested annual donation $12.75
>
> Archive: http://www.team.net/pipermail/healeys
> <http://www.team.net/pipermail/healeys>
> http://autox.team.net/archive <http://autox.team.net/archive>
>
> http://autox.team.net/mailman/listinfo/healeys
> <http://autox.team.net/mailman/listinfo/healeys>
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/cnaarndt@gmail.com
> <http://autox.team.net/mailman/options/healeys/cnaarndt@gmail.com>
>
--------------A410F023F053DC433DC36B42
Content-Transfer-Encoding: 8bit
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
Thanks for the correction, Curt. I'd always wondered why 'posidrive'
screws were used--I think posidrive is a relatively recent
development--and why regular phillips drivers worked in them (I
think posidrive has a steeper angle of the screw blades). I have a
posidrive screwdriver, but I usually grabbed whatever was handy. Do
you know of a source for the correctly marked screws?<br>
<br>
Do you know if the backing flat washer was tapped (I don't think so,
but I'm not sure). IIRC there is a tapped plate that binds the
screws--again, chromed--that attach the rearview mirror.<br>
<br>
Bob<br>
<br>
<br>
<div class="moz-cite-prefix">On 3/22/2021 7:59 AM, Curtis Arndt
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAJKrNeSazKxDgqTgh+SLJomJjnEsPnYV_KeveT6Rt-WBtmmMyg@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Hi Bob and Joe,
<div><br>
</div>
<div>Just a quick correction, "Pozidriv " screws were never used
on AH 100s, BN1/2s.  </div>
<div><br>
</div>
<div>The four marks on the head of these 10-32 screws were there
to denote UNF from "Whitworth" during the changeover to the
Unified screw thread forms in the 1950s.</div>
<div><br>
</div>
<div>I've attached a page from my vintage Machinery's Handbook
which illustrates this fact.</div>
<div><br>
</div>
<div>Cheers,</div>
<div><br>
</div>
<div>Curt</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sun, Mar 21, 2021 at 11:27
PM Bob Spidell <<a href="mailto:bspidell@comcast.net";
moz-do-not-send="true">bspidell@comcast.net</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div> I neglected to mention the screw is backed-up with a
large, extra thick flat washer (because of the large hole in
the bracket). It's unique because it's as thick as a couple
of typical flat washers and <i>might--</i>I don't recall
for sure--be tapped for the screw.<br>
<br>
<div>On 3/21/2021 10:21 PM, Bob Spidell wrote:<br>
</div>
<blockquote type="cite"> Yep. And, the original screw is
chromed posidriv, with a slightly oversized--the screw is
a #10 IIRC--chrome washer. I noted this when we tore down
our BN2 for restoration, and promised myself I'd not lose
these. I lost them (and have never found proper
replacements).<br>
<br>
You can sorta see them in this grainy photo (I <i>shoulda</i>
took more).<br>
<br>
Bob<br>
<br>
<div>On 3/21/2021 4:14 PM, Joseph Costa wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Does it just attach to the brace behind
the dash?
<div><br>
</div>
<div>Joe </div>
<div>BN1 #923</div>
<div>BN2 100M</div>
<div>BJ8 Blue Baby</div>
</div>
<br>
</blockquote>
<br>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
Archive: <a href="http://www.team.net/pipermail/healeys"; target="_blank"
moz-do-not-send="true">http://www.team.net/pipermail/healeys</a> <a
href="http://autox.team.net/archive"; target="_blank"
moz-do-not-send="true">http://autox.team.net/archive</a>
<a href="mailto:Healeys@autox.team.net"; target="_blank"
moz-do-not-send="true">Healeys@autox.team.net</a>
<a href="http://autox.team.net/mailman/listinfo/healeys"; target="_blank"
moz-do-not-send="true">http://autox.team.net/mailman/listinfo/healeys</a>
</pre>
</blockquote>
<br>
</div>
_______________________________________________<br>
Support Team.Net <a href="http://www.team.net/donate.html";
rel="noreferrer" target="_blank"
moz-do-not-send="true">http://www.team.net/donate.html</a><br>
Suggested annual donation $12.75<br>
<br>
Archive: <a href="http://www.team.net/pipermail/healeys";
rel="noreferrer" target="_blank"
moz-do-not-send="true">http://www.team.net/pipermail/healeys</a>
<a href="http://autox.team.net/archive"; rel="noreferrer"
target="_blank"
moz-do-not-send="true">http://autox.team.net/archive</a><br>
<br>
<a href="mailto:Healeys@autox.team.net"; target="_blank"
moz-do-not-send="true">Healeys@autox.team.net</a><br>
<a href="http://autox.team.net/mailman/listinfo/healeys";
rel="noreferrer" target="_blank"
moz-do-not-send="true">http://autox.team.net/mailman/listinfo/healeys</a><br>
<br>
Unsubscribe/Manage: <a
href="http://autox.team.net/mailman/options/healeys/cnaarndt@gmail.com";
rel="noreferrer" target="_blank"
moz-do-not-send="true">http://autox.team.net/mailman/options/healeys/cnaarndt@gmail.com</a><br>
<br>
</blockquote>
</div>
</blockquote>
<br>
</body>
</html>
--------------A410F023F053DC433DC36B42--
--===============3153274384619994003==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
--===============3153274384619994003==--
|