Subject: [Healeys] BN2 screw in the center of the dash

From: Joseph Costa <[email-masked]>
Date: Sun, 21 Mar 2021 19:14:40 -0400

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Does it just attach to the brace behind the dash?

Joe
BN1 #923
BN2 100M
BJ8 Blue Baby

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<div dir=3D"ltr">Does it just attach to the brace behind the dash?<div><br>=
</div><div>Joe=C2=A0</div><div>BN1 #923</div><div>BN2 100M</div><div>BJ8 Bl=
ue Baby</div></div>

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Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archive

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From: Henry G Leach via Healeys <[email-masked]>
Date: Mon, 22 Mar 2021 16:47:35 +0000 0pmO9Qqh2bodSaYC5FcQ2x1ykEEtf7/E+Mu8nwx4WGiqYakEXOIs85bWaegZJMN/IbYNJUz9vJ+dS9Vmjf64pds5b0fKCHiKAmN9lXmV8jJVTNWBMOSqICv8

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Guys-pozidriv screws were used on the later 3000, etc. as a production=
=0Aitem. This type of screw was used with a special tool to "quickly"=0A=
install screws on the line. It was another way BMC was trying to make=0A=
a buck on underpriced and over-difficult assembly of vehicles. Then=0Ath=
ey went broke...Hank=0A=0A=09-----------------------------------------Fr=
om: "Bob Spidell" =0ATo: "Curtis Arndt"=0ACc: "Healey List"=0ASent: Mond=
ay March 22 2021 9:01:24AM=0ASubject: Re: [Healeys] BN2 screw in the cen=
ter of the dash=0A=0A Thanks for the correction, Curt. I'd always wonder=
ed why 'posidrive'=0Ascrews were used--I think posidrive is a relatively=
 recent=0Adevelopment--and why regular phillips drivers worked in them (=
I think=0Aposidrive has a steeper angle of the screw blades). I have a p=
osidrive=0Ascrewdriver, but I usually grabbed whatever was handy. Do you=
 know of=0Aa source for the correctly marked screws?=0A=0A Do you know i=
f the backing flat washer was tapped (I don't think so,=0Abut I'm not su=
re). IIRC there is a tapped plate that binds the=0Ascrews--again, chrome=
d--that attach the rearview mirror.=0A=0A Bob=0A=0AOn 3/22/2021 7:59 AM,=
 Curtis Arndt wrote:=0A  Hi Bob and Joe, =0A Just a quick correction, "P=
ozidriv " screws were never used on AH=0A100s, BN1/2s.  =0A The four mar=
ks on the head of these 10-32 screws were there to denote=0AUNF from "Wh=
itworth" during the changeover to the Unified screw thread=0Aforms in th=
e 1950s. =0A I've attached a page from my vintage Machinery's Handbook w=
hich=0Aillustrates this fact. =0A Cheers, =0A Curt  =0A On Sun, Mar 21,=
 2021 at 11:27 PM Bob Spidell  wrote:=0A  I neglected to mention the scr=
ew is backed-up with a large, extra=0Athick flat washer (because of the=
 large hole in the bracket). It's=0Aunique because it's as thick as a co=
uple of typical flat washers and=0A_might--_I don't recall for sure--be=
 tapped for the screw.=0A=0AOn 3/21/2021 10:21 PM, Bob Spidell wrote:=0A=
 Yep. And, the original screw is chromed posidriv, with a slightly=0Aove=
rsized--the screw is a #10 IIRC--chrome washer. I noted this when=0Awe t=
ore down our BN2 for restoration, and promised myself I'd not lose=0Athe=
se. I lost them (and have never found proper replacements).=0A=0A You ca=
n sorta see them in this grainy photo (I _shoulda_ took more).=0A=0A Bob=
=0A=0AOn 3/21/2021 4:14 PM, Joseph Costa wrote:=0A  Does it just attach=
 to the brace behind the dash? =0A Joe  BN1 #923 BN2 100M BJ8 Blue Baby=
  =0A=0A _______________________________________________=0A Support Team=
.Net  [1] "_blank" moz-do-not-send=3D"true">=0A"http://www.team.net/dona=
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ys/[email-masked]=0A

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<html><body>Guys-pozidriv screws were used on the later 3000, etc. as a=
 production item. This type of screw was used with a special tool to "qu=
ickly" install screws on the line. It was another way BMC was trying to=
 make a buck on underpriced and over-difficult assembly of vehicles. The=
n they went broke...Hank<br><br><div class=3D"reply-new-signature"></div=
><p>-----------------------------------------</p>From: "Bob Spidell" <bs=
[email-masked]><br>To: "Curtis Arndt"<br>Cc: "Healey List"<br>Sent:=
 Monday March 22 2021 9:01:24AM<br>Subject: Re: [Healeys] BN2 screw in t=
he center of the dash<br><br>=0AThanks for the correction, Curt. I'd alw=
ays wondered why=0A'posidrive' screws were used--I think posidrive is a=
 relatively=0Arecent development--and why regular phillips drivers worke=
d in them=0A(I think posidrive has a steeper angle of the screw blades).=
 I have=0Aa posidrive screwdriver, but I usually grabbed whatever was ha=
ndy.=0ADo you know of a source for the correctly marked screws?<br><br>=
=0ADo you know if the backing flat washer was tapped (I don't think=0Aso=
, but I'm not sure). IIRC there is a tapped plate that binds the=0Ascrew=
s--again, chromed--that attach the rearview mirror.<br><br>=0ABob<br><br=
><br><div class=3D"moz-cite-prefix">On 3/22/2021 7:59 AM, Curtis Arndt=
=0Awrote:<br></div>=0A<blockquote>=0A<div dir=3D"ltr">Hi Bob and Joe,=0A=
<div><br></div>=0A<div>Just a quick correction, "Pozidriv " screws were=
 never used on=0AAH 100s, BN1/2s.&nbsp;&nbsp;</div>=0A<div><br></div>=0A=
<div>The four marks on the head of these 10-32 screws were there to=0Ade=
note UNF from&nbsp;"Whitworth" during the changeover to the=0AUnified sc=
rew thread forms in the 1950s.</div>=0A<div><br></div>=0A<div>I've attac=
hed a page from my vintage Machinery's Handbook=0Awhich illustrates this=
 fact.</div>=0A<div><br></div>=0A<div>Cheers,</div>=0A<div><br></div>=0A=
<div>Curt</div>=0A</div>=0A<br><div class=3D"gmail_quote">=0A<div dir=3D=
"ltr" class=3D"gmail_attr">On Sun, Mar 21, 2021 at 11:27 PM=0ABob Spidel=
l &lt;<a>[email-masked]</a>&gt;=0Awrote:<br></div>=0A<blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px .8ex;border-left:1px so=
lid rgb(204,204,204);padding-left:1ex;">=0A<div>I neglected to mention t=
he screw is backed-up with a large,=0Aextra thick flat washer (because o=
f the large hole in the bracket).=0AIt's unique because it's as thick as=
 a couple of typical flat=0Awashers and <i>might--</i>I don't recall for=
 sure--be tapped for=0Athe screw.<br><br><div>On 3/21/2021 10:21 PM, Bob=
 Spidell wrote:<br></div>=0A<blockquote>Yep. And, the original screw is=
 chromed=0Aposidriv, with a slightly oversized--the screw is a #10=0AIIR=
C--chrome washer. I noted this when we tore down our BN2 for=0Arestorati=
on, and promised myself I'd not lose these. I lost them=0A(and have neve=
r found proper replacements).<br><br>=0AYou can sorta see them in this g=
rainy photo (I <i>shoulda</i> took=0Amore).<br><br>=0ABob<br><br><div>On=
 3/21/2021 4:14 PM, Joseph Costa wrote:<br></div>=0A<blockquote>=0A<div=
 dir=3D"ltr">Does it just attach to the brace behind the dash?=0A<div><b=
r></div>=0A<div>Joe&nbsp;</div>=0A<div>BN1 #923</div>=0A<div>BN2 100M</d=
iv>=0A<div>BJ8 Blue Baby</div>=0A</div>=0A<br></blockquote>=0A<br><br>=
=0A_______________________________________________<br>=0ASupport Team.Ne=
t <a href=3D"http://www.team.net/donate.html"></a>=0A"_blank" moz-do-not=
-send=3D"true"&gt;<a href=3D""></a>=0A"http://www.team.net/donate.html"=
 target=3D<br>=0A"_blank"&gt;http://www.team.net/donate.html<br>=0ASugge=
sted annual donation  $12.75<br><br>=0AArchive: <a href=3D"http://www.te=
am.net/pipermail/healeys"></a>=0A"_blank" moz-do-not-send=3D"true"&gt;<a=
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[email-masked]

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From: David Nock BCS via Healeys <[email-masked]>
Date: Mon, 22 Mar 2021 10:21:00 -0700 boundary="----=_NextPart_000_011B_01D71F05.1076D600"

This is a multi-part message in MIME format.

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Here is the real story of the Pozi and Phillips Screws as they say it =
came right from the horses mouth. In 1996 my father interviewed the =
Phillips family the designer of the Phillips and Pozi Screws. They =
personally approved this article that my father wrote on the Phillips =
Screw the Austin Healey Magazine. This and many other articles are in =
our Healey Tech Talk Book.

The bottom line is the Phillips Screw is designed to slip out at a pre =
dertimined torque, and the Pozi Screw is designed to not slip out.=20

And the Pozi Screw was developed in about 1956 for the automotive =
industry so there is no way that they could have been installed on a =
BN1.=20

David Nock
British Car Specialists
209-948-8767
www.britishcarspecialists.com

From: Henry G Leach via Healeys=20
Sent: Monday, March 22, 2021 9:47 AM
To: 'Bob Spidell'=20
Cc: 'Healey List'=20
Subject: Re: [Healeys] BN2 screw in the center of the dash

Guys-pozidriv screws were used on the later 3000, etc. as a production =
item. This type of screw was used with a special tool to "quickly" =
install screws on the line. It was another way BMC was trying to make a =
buck on underpriced and over-difficult assembly of vehicles. Then they =
went broke...Hank

-----------------------------------------

From: "Bob Spidell"=20
To: "Curtis Arndt"
Cc: "Healey List"
Sent: Monday March 22 2021 9:01:24AM
Subject: Re: [Healeys] BN2 screw in the center of the dash

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,=20

  Just a quick correction, "Pozidriv " screws were never used on AH =
100s, BN1/2s. =20

  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 <[email-masked]> =
wrote:

    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?=20

        Joe=20
        BN1 #923
        BN2 100M
        BJ8 Blue Baby

      _______________________________________________
      Support Team.Net "_blank" moz-do-not-send=3D"true"> =
"http://www.team.net/donate.html" target=3D
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et

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<HTML><HEAD></HEAD>
<BODY dir=3Dltr>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR: #000000">
<DIV>Here is the real story of the Pozi and Phillips Screws as they say =
it came=20
right from the horses mouth. In 1996 my father interviewed the Phillips =
family=20
the designer of the Phillips and Pozi Screws. They personally approved =
this=20
article that my father wrote on the Phillips Screw the Austin Healey =
Magazine.=20
This and many other articles are in our Healey Tech Talk Book.</DIV>
<DIV>&nbsp;</DIV>
<DIV>The bottom line is the Phillips Screw is designed to slip out at a =
pre=20
dertimined torque, and the Pozi Screw is designed to not slip out. =
</DIV>
<DIV>&nbsp;</DIV>
<DIV>And the Pozi Screw was developed in about 1956 for the automotive =
industry=20
so there is no way that they could have been installed on a BN1. </DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR: #000000">
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR: =
#000000">David=20
Nock<BR>British Car Specialists<BR>209-948-8767<BR><A=20
href=3D"http://www.britishcarspecialists.com">www.britishcarspecialists.c=
om</A></DIV>
<DIV=20
style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR: =
#000000">&nbsp;</DIV><BR></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV style=3D"FONT: 10pt tahoma">
<DIV>&nbsp;</DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A=20
title=[email-masked]>Henry G Leach via Healeys</A> </DIV>
<DIV><B>Sent:</B> Monday, March 22, 2021 9:47 AM</DIV>
<DIV><B>To:</B> <A title=[email-masked]>'Bob Spidell'</A> </DIV>
<DIV><B>Cc:</B> <A title=[email-masked]>'Healey List'</A> =
</DIV>
<DIV><B>Subject:</B> Re: [Healeys] BN2 screw in the center of the=20
dash</DIV></DIV></DIV>
<DIV>&nbsp;</DIV></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>Guys-pozidriv=20
screws were used on the later 3000, etc. as a production item. This type =
of=20
screw was used with a special tool to "quickly" install screws on the =
line. It=20
was another way BMC was trying to make a buck on underpriced and =
over-difficult=20
assembly of vehicles. Then they went broke...Hank<BR><BR>
<DIV class=3Dreply-new-signature></DIV>
<P>-----------------------------------------</P>From: "Bob Spidell" =
<BSPIDELL=20
@COMCAST.NET><BR>To: "Curtis Arndt"<BR>Cc: "Healey List"<BR>Sent: Monday =
March=20
22 2021 9:01:24AM<BR>Subject: Re: [Healeys] BN2 screw in the center of =
the=20
dash<BR><BR>Thanks for the correction, Curt. I'd always wondered why =
'posidrive'=20
screws were used--I think posidrive is a relatively recent =
development--and why=20
regular phillips drivers worked in them (I think posidrive has a steeper =
angle=20
of the screw blades). I have a posidrive screwdriver, but I usually =
grabbed=20
whatever was handy. Do you know of a source for the correctly marked=20
screws?<BR><BR>Do you know if the backing flat washer was tapped (I =
don't think=20
so, but I'm not sure). IIRC there is a tapped plate that binds the=20
screws--again, chromed--that attach the rearview =
mirror.<BR><BR>Bob<BR><BR><BR>
<DIV class=3Dmoz-cite-prefix>On 3/22/2021 7:59 AM, Curtis Arndt =
wrote:<BR></DIV>
<BLOCKQUOTE>
  <DIV dir=3Dltr>Hi Bob and Joe,=20
  <DIV>&nbsp;</DIV>
  <DIV>Just a quick correction, "Pozidriv " screws were never used on AH =
100s,=20
  BN1/2s.&nbsp; </DIV>
  <DIV>&nbsp;</DIV>
  <DIV>The four marks on the head of these 10-32 screws were there to =
denote UNF=20
  from "Whitworth" during the changeover to the Unified screw thread =
forms in=20
  the 1950s.</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>I've attached a page from my vintage Machinery's Handbook which=20
  illustrates this fact.</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>Cheers,</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>Curt</DIV></DIV>
  <DIV>&nbsp;</DIV>
  <DIV class=3Dgmail_quote>
  <DIV class=3Dgmail_attr dir=3Dltr>On Sun, Mar 21, 2021 at 11:27 PM Bob =
Spidell=20
  &lt;<A>[email-masked]</A>&gt; wrote:<BR></DIV>
  <BLOCKQUOTE class=3Dgmail_quote=20
  style=3D"PADDING-LEFT: 1ex; BORDER-LEFT: rgb(204,204,204) 1px solid; =
MARGIN: 0px 0px 0px 0.8ex">
    <DIV>I neglected to mention the screw is backed-up with a large, =
extra thick=20
    flat washer (because of the large hole in the bracket). It's unique =
because=20
    it's as thick as a couple of typical flat washers and =
<I>might--</I>I don't=20
    recall for sure--be tapped for the screw.<BR><BR>
    <DIV>On 3/21/2021 10:21 PM, Bob Spidell wrote:<BR></DIV>
    <BLOCKQUOTE>Yep. And, the original screw is chromed posidriv, with a =

      slightly oversized--the screw is a #10 IIRC--chrome washer. I =
noted this=20
      when we tore down our BN2 for restoration, and promised myself I'd =
not=20
      lose these. I lost them (and have never found proper=20
      replacements).<BR><BR>You can sorta see them in this grainy photo =
(I=20
      <I>shoulda</I> took more).<BR><BR>Bob<BR><BR>
      <DIV>On 3/21/2021 4:14 PM, Joseph Costa wrote:<BR></DIV>
      <BLOCKQUOTE>
        <DIV dir=3Dltr>Does it just attach to the brace behind the dash? =

        <DIV>&nbsp;</DIV>
        <DIV>Joe </DIV>
        <DIV>BN1 #923</DIV>
        <DIV>BN2 100M</DIV>
        <DIV>BJ8 Blue=20
      =
Baby</DIV></DIV><BR></BLOCKQUOTE><BR><BR>________________________________=
_______________<BR>Support=20
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[email-masked]

------=_NextPart_000_011B_01D71F05.1076D600--

---

From: Henry G Leach via Healeys <[email-masked]>
Date: Tue, 23 Mar 2021 04:02:17 +0000 QuHeLgXw4IHx4MArGraBsb7ePzJEoScxA5iz53xp6LsX1yLd4vvKb/qMVBW1yWY28l+V/dUVZO691gZeX6BF/deEyhPH0RV7Y3jGkqiZjWYoev5WnS5iGEH6

--===============2289863311270613512==
 boundary="=_cd9f527e82c89759034e3dd8f3683bbf"

--=_cd9f527e82c89759034e3dd8f3683bbf
Content-Transfer-Encoding: quoted-printable

That was what I really appreciated about Norman. He was so exacting,=0Ak=
nowledgeable, and took the time to research and answer any question=0Are=
lated to British car maintainence.=0AHe is revered as a legend for solvi=
ng issues with British cars. Sure=0Amiss him. Excellent article. Hank=0A=
=0A=09-----------------------------------------From: "David Nock BCS"=
 =0ATo: "Bob Spidell"=0ACc: "Healey List"=0ASent: Monday March 22 2021 1=
0:21:16AM=0ASubject: Re: [Healeys] BN2 screw in the center of the dash=
=0A=0A   Here is the real story of the Pozi and Phillips Screws as they=
 say=0Ait came right from the horses mouth. In 1996 my father interviewe=
d the=0APhillips family the designer of the Phillips and Pozi Screws. Th=
ey=0Apersonally approved this article that my father wrote on the Philli=
ps=0AScrew the Austin Healey Magazine. This and many other articles are=
 in=0Aour Healey Tech Talk Book.   The bottom line is the Phillips Screw=
 is=0Adesigned to slip out at a pre dertimined torque, and the Pozi Scre=
w is=0Adesigned to not slip out.   And the Pozi Screw was developed in a=
bout=0A1956 for the automotive industry so there is no way that they cou=
ld=0Ahave been installed on a BN1.      David Nock=0A British Car Specia=
lists=0A 209-948-8767=0Awww.britishcarspecialists.com [1]   =0A      FRO=
M: Henry G Leach via Healeys SENT: Monday, March 22, 2021=0A9:47 AM TO:=
 'Bob Spidell' CC: 'Healey List' SUBJECT: Re: [Healeys] BN2=0Ascrew in t=
he center of the dash       Guys-pozidriv screws were used=0Aon the late=
r 3000, etc. as a production item. This type of screw was=0Aused with a=
 special tool to "quickly" install screws on the line. It=0Awas another=
 way BMC was trying to make a buck on underpriced and=0Aover-difficult a=
ssembly of vehicles. Then they went broke...Hank=0A=0A=09---------------=
-------------------------- From: "Bob Spidell"=0A To: "Curtis Arndt"=0A=
 Cc: "Healey List"=0A Sent: Monday March 22 2021 9:01:24AM=0A Subject: R=
e: [Healeys] BN2 screw in the center of the dash=0A=0A Thanks for the co=
rrection, Curt. I'd always wondered why 'posidrive'=0Ascrews were used--=
I think posidrive is a relatively recent=0Adevelopment--and why regular=
 phillips drivers worked in them (I think=0Aposidrive has a steeper angl=
e of the screw blades). I have a posidrive=0Ascrewdriver, but I usually=
 grabbed whatever was handy. Do you know of=0Aa source for the correctly=
 marked screws?=0A=0A Do you know if the backing flat washer was tapped=
 (I don't think so,=0Abut I'm not sure). IIRC there is a tapped plate th=
at binds the=0Ascrews--again, chromed--that attach the rearview mirror.=
=0A=0A Bob=0A=0AOn 3/22/2021 7:59 AM, Curtis Arndt wrote:=0A  Hi Bob and=
 Joe,   Just a quick correction, "Pozidriv " screws were=0Anever used on=
 AH 100s, BN1/2s.    The four marks on the head of these=0A10-32 screws=
 were there to denote UNF from "Whitworth" during the=0Achangeover to th=
e Unified screw thread forms in the 1950s.   I've=0Aattached a page from=
 my vintage Machinery's Handbook which illustrates=0Athis fact.   Cheers=
,   Curt     On Sun, Mar 21, 2021 at 11:27 PM Bob=0ASpidell  wrote:=0A =
 I neglected to mention the screw is backed-up with a large, extra=0Athi=
ck flat washer (because of the large hole in the bracket). It's=0Aunique=
 because it's as thick as a couple of typical flat washers and=0A_might-=
-_I don't recall for sure--be tapped for the screw.=0A=0AOn 3/21/2021 10=
:21 PM, Bob Spidell wrote:=0A Yep. And, the original screw is chromed po=
sidriv, with a slightly=0Aoversized--the screw is a #10 IIRC--chrome was=
her. I noted this when=0Awe tore down our BN2 for restoration, and promi=
sed myself I'd not lose=0Athese. I lost them (and have never found prope=
r replacements).=0A=0A You can sorta see them in this grainy photo (I _s=
houlda_ took more).=0A=0A Bob=0A=0AOn 3/21/2021 4:14 PM, Joseph Costa wr=
ote:=0A  Does it just attach to the brace behind the dash?   Joe BN1 #92=
3 BN2=0A100M BJ8 Blue Baby  =0A=0A _____________________________________=
__________=0A Support Team.Net "_blank" moz-do-not-send=3D"true">=0A"htt=
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ealeys/[email-masked]=0A[12]=0A=0A _______________________________=
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l [14]=0A Suggested annual donation $12.75=0A=0A Archive:  [15]http://ww=
w.team.net/pipermail/healeys [16] =0A[17]http://autox.team.net/archive [=
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t/mailman/options/healeys/[email-masked]=0A[22]=0A=0A---------------=
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ion $12.75=0A=0A Archive: http://www.team.net/pipermail/healeys [24]=0Ah=
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om=0A[2] http://www.team.net/donate.html=0A[3] http://www.team.net/donat=
e.html=0A[4] http://www.team.net/pipermail/healeys=0A[5] http://www.team=
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eys=0A[9] http://autox.team.net/mailman/listinfo/healeys=0A[10]=0Ahttp:/=
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aleys=0A[20] http://autox.team.net/mailman/listinfo/healeys=0A[21] http:=
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//www.team.net/donate.html=0A[24] http://www.team.net/pipermail/healeys=
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--=_cd9f527e82c89759034e3dd8f3683bbf
Content-Transfer-Encoding: quoted-printable

<html><body>That was what I really appreciated about Norman.&nbsp; He wa=
s so exacting, knowledgeable, and took the time to research and answer a=
ny question related to British car maintainence.<div><br></div><div>He i=
s revered as a legend for solving issues with British cars. Sure miss hi=
m.&nbsp; Excellent article. Hank<br><br><div class=3D"reply-new-signatur=
e"></div><p>-----------------------------------------</p>From: "David No=
ck BCS" <[email-masked]><br>To:  "Bob Spidell"<br>Cc: "Healey L=
ist"<br>Sent: Monday March 22 2021 10:21:16AM<br>Subject: Re: [Healeys]=
 BN2 screw in the center of the dash<br><br>=0A<div dir=3D"ltr">=0A<div=
 style=3D"font-size:12pt;font-family:Century;color:#000000;">=0A<div>Her=
e is the real story of the Pozi and Phillips Screws as they=0Asay it cam=
e right from the horses mouth. In 1996 my father=0Ainterviewed the Phill=
ips family the designer of the Phillips and=0APozi Screws. They personal=
ly approved this article that my father=0Awrote on the Phillips Screw th=
e Austin Healey Magazine. This and=0Amany other articles are in our Heal=
ey Tech Talk Book.</div>=0A<div>&nbsp;</div>=0A<div>The bottom line is t=
he Phillips Screw is designed to slip out=0Aat a pre dertimined torque,=
 and the Pozi Screw is designed to not=0Aslip out.</div>=0A<div>&nbsp;</=
div>=0A<div>And the Pozi Screw was developed in about 1956 for the=0Aaut=
omotive industry so there is no way that they could have been=0Ainstalle=
d on a BN1.</div>=0A<div>&nbsp;</div>=0A<div>&nbsp;</div>=0A<div style=
=3D"font-size:12pt;font-family:Century;color:#000000;">=0A<div style=3D"=
font-size:12pt;font-family:Century;color:#000000;">David=0ANock<br>=0ABr=
itish Car Specialists<br>=0A209-948-8767<br><a href=3D"http://www.britis=
hcarspecialists.com">www.britishcarspecialists.com</a></div>=0A<div styl=
e=3D"font-size:12pt;font-family:Century;color:#000000;">=0A&nbsp;</div>=
=0A<br></div>=0A<div style=3D"font-size:small;text-decoration:none;font-=
family:Calibri;font-weight:normal;color:#000000;font-style:normal;">=0A<=
div style=3D"font:10pt tahoma;">=0A<div>&nbsp;</div>=0A<div style=3D"bac=
kground:#f5f5f5;">=0A<div><b>From:</b> <a title=3D"[email-masked]=
t">Henry G Leach via Healeys</a></div>=0A<div><b>Sent:</b> Monday, March=
 22, 2021 9:47 AM</div>=0A<div><b>To:</b> <a title=3D"[email-masked]=
et">'Bob=0ASpidell'</a></div>=0A<div><b>Cc:</b> <a title=3D"healeys@auto=
x.team.net">'Healey=0AList'</a></div>=0A<div><b>Subject:</b> Re: [Healey=
s] BN2 screw in the center of the=0Adash</div>=0A</div>=0A</div>=0A<div>=
&nbsp;</div>=0A</div>=0A<div style=3D"font-size:small;text-decoration:no=
ne;font-family:Calibri;font-weight:normal;color:#000000;font-style:norma=
l;">=0AGuys-pozidriv screws were used on the later 3000, etc. as a=0Apro=
duction item. This type of screw was used with a special tool to=0A"quic=
kly" install screws on the line. It was another way BMC was=0Atrying to=
 make a buck on underpriced and over-difficult assembly of=0Avehicles. T=
hen they went broke...Hank<br><br><div class=3D"reply-new-signature"></d=
iv>=0A<p>-----------------------------------------</p>=0AFrom: "Bob Spid=
ell"<br>=0ATo: "Curtis Arndt"<br>=0ACc: "Healey List"<br>=0ASent: Monday=
 March 22 2021 9:01:24AM<br>=0ASubject: Re: [Healeys] BN2 screw in the c=
enter of the dash<br><br>=0AThanks for the correction, Curt. I'd always=
 wondered why=0A'posidrive' screws were used--I think posidrive is a rel=
atively=0Arecent development--and why regular phillips drivers worked in=
 them=0A(I think posidrive has a steeper angle of the screw blades). I h=
ave=0Aa posidrive screwdriver, but I usually grabbed whatever was handy.=
=0ADo you know of a source for the correctly marked screws?<br><br>=0ADo=
 you know if the backing flat washer was tapped (I don't think=0Aso, but=
 I'm not sure). IIRC there is a tapped plate that binds the=0Ascrews--ag=
ain, chromed--that attach the rearview mirror.<br><br>=0ABob<br><br><br>=
<div class=3D"moz-cite-prefix">On 3/22/2021 7:59 AM, Curtis Arndt=0Awrot=
e:<br></div>=0A<blockquote>=0A<div dir=3D"ltr">Hi Bob and Joe,=0A<div>&n=
bsp;</div>=0A<div>Just a quick correction, "Pozidriv " screws were never=
 used on=0AAH 100s, BN1/2s.&nbsp;</div>=0A<div>&nbsp;</div>=0A<div>The f=
our marks on the head of these 10-32 screws were there to=0Adenote UNF f=
rom "Whitworth" during the changeover to the Unified=0Ascrew thread form=
s in the 1950s.</div>=0A<div>&nbsp;</div>=0A<div>I've attached a page fr=
om my vintage Machinery's Handbook=0Awhich illustrates this fact.</div>=
=0A<div>&nbsp;</div>=0A<div>Cheers,</div>=0A<div>&nbsp;</div>=0A<div>Cur=
t</div>=0A</div>=0A<div>&nbsp;</div>=0A<div class=3D"gmail_quote">=0A<di=
v class=3D"gmail_attr" dir=3D"ltr">On Sun, Mar 21, 2021 at 11:27 PM=0ABo=
b Spidell &lt;<a>[email-masked]</a>&gt; wrote:<br></div>=0A<blockq=
uote class=3D"gmail_quote" style=3D"padding-left:1ex;border-left:rgb(204=
,204,204) 1px solid;margin:0px 0px 0px .8ex;">=0A<div>I neglected to men=
tion the screw is backed-up with a large,=0Aextra thick flat washer (bec=
ause of the large hole in the bracket).=0AIt's unique because it's as th=
ick as a couple of typical flat=0Awashers and <i>might--</i>I don't reca=
ll for sure--be tapped for=0Athe screw.<br><br><div>On 3/21/2021 10:21 P=
M, Bob Spidell wrote:<br></div>=0A<blockquote>Yep. And, the original scr=
ew is chromed posidriv, with=0Aa slightly oversized--the screw is a #10=
 IIRC--chrome washer. I=0Anoted this when we tore down our BN2 for resto=
ration, and promised=0Amyself I'd not lose these. I lost them (and have=
 never found proper=0Areplacements).<br><br>=0AYou can sorta see them in=
 this grainy photo (I <i>shoulda</i> took=0Amore).<br><br>=0ABob<br><br>=
<div>On 3/21/2021 4:14 PM, Joseph Costa wrote:<br></div>=0A<blockquote>=
=0A<div dir=3D"ltr">Does it just attach to the brace behind the dash?=0A=
<div>&nbsp;</div>=0A<div>Joe</div>=0A<div>BN1 #923</div>=0A<div>BN2 100M=
</div>=0A<div>BJ8 Blue Baby</div>=0A</div>=0A<br></blockquote>=0A<br><br=
>=0A_______________________________________________<br>=0ASupport Team.N=
et "_blank" moz-do-not-send=3D"true"&gt; "<a href=3D"http://www.team.net=
/donate.html">http://www.team.net/donate.html"</a> target=3D<br>=0A"_bla=
nk"&gt;<a href=3D"http://www.team.net/donate.html">http://www.team.net/d=
onate.html</a><br>=0ASuggested annual donation $12.75<br><br>=0AArchive:=
 "_blank" moz-do-not-send=3D"true"&gt; "<a href=3D"http://www.team.net/p=
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r>=0A"_blank"&gt;<a href=3D"http://www.team.net/pipermail/healeys">http:=
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---

From: Joseph Costa via Healeys <[email-masked]>
Date: Tue, 23 Mar 2021 22:40:22 -0400

--===============5668988763241260465==

--000000000000301d3b05be3f39b5

Thanks to all for the help and additional input

Joe

On Tue, Mar 23, 2021 at 12:03 AM Henry G Leach via Healeys <
[email-masked]> wrote:

> That was what I really appreciated about Norman.  He was so exacting,
> knowledgeable, and took the time to research and answer any question
> related to British car maintainence.
>
> He is revered as a legend for solving issues with British cars. Sure miss
> him.  Excellent article. Hank
>
> From: "David Nock BCS"
> To: "Bob Spidell"
> Sent: Monday March 22 2021 10:21:16AM
> Here is the real story of the Pozi and Phillips Screws as they say it came
> right from the horses mouth. In 1996 my father interviewed the Phillips
> family the designer of the Phillips and Pozi Screws. They personally
> approved this article that my father wrote on the Phillips Screw the Austin
> Healey Magazine. This and many other articles are in our Healey Tech Talk
> Book.
>
> The bottom line is the Phillips Screw is designed to slip out at a pre
> dertimined torque, and the Pozi Screw is designed to not slip out.
>
> And the Pozi Screw was developed in about 1956 for the automotive industry
> so there is no way that they could have been installed on a BN1.
>
>
> David Nock
> British Car Specialists
> 209-948-8767
> *From:* Henry G Leach via Healeys
> *Sent:* Monday, March 22, 2021 9:47 AM
> *To:* 'Bob Spidell'
> *Cc:* 'Healey List'
> *Subject:* Re: [Healeys] BN2 screw in the center of the dash
>
> Guys-pozidriv screws were used on the later 3000, etc. as a production
> item. This type of screw was used with a special tool to "quickly" install
> screws on the line. It was another way BMC was trying to make a buck on
> underpriced and over-difficult assembly of vehicles. Then they went
> broke...Hank
>
> From: "Bob Spidell"
> 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
>
>
> 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 <[email-masked]> wrote:
>
>> 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.
>>
>> 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
>>
>> Support Team.Net "_blank" moz-do-not-send="true"> "
>> http://www.team.net/donate.html" <http://www.team.net/donate.html>
>> target=
>> Archive: "_blank" moz-do-not-send="true"> "
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>> "_blank">http://www.team.net/pipermail/healeys "
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>> moz-do-not-send="true">[email-masked]
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Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Thanks to all for the help and additional input<div><br></=
div><div>Joe</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" cla=
ss=3D"gmail_attr">On Tue, Mar 23, 2021 at 12:03 AM Henry G Leach via Healey=
s &lt;<a href=3D"mailto:[email-masked]">[email-masked]</a>&=
gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0=
px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-colo=
r:rgb(204,204,204);padding-left:1ex"><div>That was what I really appreciate=
d about Norman.=C2=A0 He was so exacting, knowledgeable, and took the time =
to research and answer any question related to British car maintainence.<di=
v><br></div><div>He is revered as a legend for solving issues with British =
cars. Sure miss him.=C2=A0 Excellent article. Hank<br><br><div></div><p>---=
--------------------------------------</p>From: &quot;David Nock BCS&quot; =
<u></u><br>To:  &quot;Bob Spidell&quot;<br>Cc: &quot;Healey List&quot;<br>S=
ent: Monday March 22 2021 10:21:16AM<br>Subject: Re: [Healeys] BN2 screw in=
 the center of the dash<br><br>
<div dir=3D"ltr">
<div style=3D"font-size:12pt;font-family:Century;color:rgb(0,0,0)">
<div>Here is the real story of the Pozi and Phillips Screws as they
say it came right from the horses mouth. In 1996 my father
interviewed the Phillips family the designer of the Phillips and
Pozi Screws. They personally approved this article that my father
wrote on the Phillips Screw the Austin Healey Magazine. This and
many other articles are in our Healey Tech Talk Book.</div>
<div>=C2=A0</div>
<div>The bottom line is the Phillips Screw is designed to slip out
at a pre dertimined torque, and the Pozi Screw is designed to not
slip out.</div>
<div>=C2=A0</div>
<div>And the Pozi Screw was developed in about 1956 for the
automotive industry so there is no way that they could have been
installed on a BN1.</div>
<div>=C2=A0</div>
<div>=C2=A0</div>
<div style=3D"font-size:12pt;font-family:Century;color:rgb(0,0,0)">
<div style=3D"font-size:12pt;font-family:Century;color:rgb(0,0,0)">David
Nock<br>
British Car Specialists<br>
209-948-8767<br><a href=3D"http://www.britishcarspecialists.com" target=3D"=
_blank">www.britishcarspecialists.com</a></div>
<div style=3D"font-size:12pt;font-family:Century;color:rgb(0,0,0)">
=C2=A0</div>
<br></div>
<div style=3D"font-size:small;text-decoration:none;font-family:Calibri;font=
-weight:normal;color:rgb(0,0,0);font-style:normal">
<div style=3D"font-style:normal;font-variant-caps:normal;font-weight:normal=
;font-stretch:normal;font-size:10pt;line-height:normal;font-family:tahoma">
<div>=C2=A0</div>
<div style=3D"background-color:rgb(245,245,245);background-position:initial=
 initial;background-repeat:initial initial">
<div><b>From:</b> <a title=3D"[email-masked]">Henry G Leach via Hea=
leys</a></div>
<div><b>Sent:</b> Monday, March 22, 2021 9:47 AM</div>
<div><b>To:</b> <a title=3D"[email-masked]">&#39;Bob
Spidell&#39;</a></div>
<div><b>Cc:</b> <a title=3D"[email-masked]">&#39;Healey
List&#39;</a></div>
<div><b>Subject:</b> Re: [Healeys] BN2 screw in the center of the
dash</div>
</div>
</div>
<div>=C2=A0</div>
</div>
<div style=3D"font-size:small;text-decoration:none;font-family:Calibri;font=
-weight:normal;color:rgb(0,0,0);font-style:normal">
Guys-pozidriv screws were used on the later 3000, etc. as a
production item. This type of screw was used with a special tool to
&quot;quickly&quot; install screws on the line. It was another way BMC was
trying to make a buck on underpriced and over-difficult assembly of
vehicles. Then they went broke...Hank<br><br><div></div>
<p>-----------------------------------------</p>
From: &quot;Bob Spidell&quot;<br>
To: &quot;Curtis Arndt&quot;<br>
Cc: &quot;Healey List&quot;<br>
Sent: Monday March 22 2021 9:01:24AM<br>
Subject: Re: [Healeys] BN2 screw in the center of the dash<br><br>
Thanks for the correction, Curt. I&#39;d always wondered why
&#39;posidrive&#39; 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&#39;t think
so, but I&#39;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>On 3/22/2021 7:59 AM, Curtis Arndt
wrote:<br></div>
<blockquote>
<div dir=3D"ltr">Hi Bob and Joe,
<div>=C2=A0</div>
<div>Just a quick correction, &quot;Pozidriv &quot; screws were never used =
on
AH 100s, BN1/2s.=C2=A0</div>
<div>=C2=A0</div>
<div>The four marks on the head of these 10-32 screws were there to
denote UNF from &quot;Whitworth&quot; during the changeover to the Unified
screw thread forms in the 1950s.</div>
<div>=C2=A0</div>
<div>I&#39;ve attached a page from my vintage Machinery&#39;s Handbook
which illustrates this fact.</div>
<div>=C2=A0</div>
<div>Cheers,</div>
<div>=C2=A0</div>
<div>Curt</div>
</div>
<div>=C2=A0</div>
<div class=3D"gmail_quote">
<div class=3D"gmail_attr" dir=3D"ltr">On Sun, Mar 21, 2021 at 11:27 PM
Bob Spidell &lt;<a>[email-masked]</a>&gt; wrote:<br></div>
<blockquote class=3D"gmail_quote" style=3D"padding-left:1ex;border-left-wid=
th:1px;border-left-style:solid;border-left-color:rgb(204,204,204);margin:0p=
x 0px 0px 0.8ex">
<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&#39;s unique because it&#39;s as thick as a couple of typical flat
washers and <i>might--</i>I don&#39;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>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&#39;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>
<div dir=3D"ltr">Does it just attach to the brace behind the dash?
<div>=C2=A0</div>
<div>Joe</div>
<div>BN1 #923</div>
<div>BN2 100M</div>
<div>BJ8 Blue Baby</div>
</div>
<br></blockquote>
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