--===============8321474925997586022==
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I agree with Michael 100% on *aircraft *"Nyloc" fasteners. However, cars
are not aircraft, and the aircraft standards are ultra conservative.
But, if I read the period BMC bulletin from the 1950s correctly, Nyloc
fasteners could be reused on British cars. How many times they could be
reused is not stated, and of course the folks who wrote this NEVER
anticipated that these cars would be restored 65 years later, and using
these original fasteners!
IF you want to replate your original "Nyloc" fasteners, then DON'T have
them commercially plated, as it messes up the nylon. Do them at home with
a "Caswell" or other quality home plating kit. I replated mine for items
like the boot hinge fasteners, and prop rod where they are not a
safely issue.
Cheers,
Curt
On Mon, Jun 21, 2021 at 12:12 PM Bob Haskell via Healeys <
healeys@autox.team.net> wrote:
> Michael,
>
> Nothing to add except that the AN7 nyloc nuts I have from Earls Indy are
> also 5/8" AF.
>
> Never noticed this before. Strange.
>
> Cheers,
>
> Bob Haskell
> Austin Healey 3000 BN7/BT7 registrar
>
> On 6/21/21 1:42 PM, Michael Salter via Healeys wrote:
>
> In my aircraft engine days installing a used nyloc nut was regarded as a
> cardinal sin.
> I have just used up the last of my OE 7/16" UNF nyloc big end nuts
> (AEC328) and have received a box of new ones from my fastener supplier.
> What is weird is that these grade 8 nuts are 5/8" AF whereas the originals
> were 11/16" AF.
> After making some enquiries it turns out that grade eight (and for that
> matter grade five) 7/16" UNF nyloc nuts are only available as 5/8" AF !!
> Regular 7/16" UNF nuts are 11/16" AF and 1/2" UNF nyloc and regular nuts
> are both 3/4" AF.
> It seems that this wrench size anomaly is unique to 7/16" nyloc nuts.
> Does anyone out there have any idea what this is all about?
>
> M
>
>
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Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">I agree with Michael 100% on <b><u>aircraft</u>=C2=A0</b>&=
quot;Nyloc" fasteners.=C2=A0 However, cars are not aircraft, and the a=
ircraft standards are ultra conservative.=C2=A0<div><br></div><div>But, if =
I read the period BMC bulletin from the 1950s correctly, Nyloc fasteners=C2=
=A0could be reused on British cars. How many times they could be reused is =
not stated, and of course the folks who wrote this NEVER anticipated that t=
hese cars would be restored 65 years later, and using these original fasten=
ers!</div><div><br></div><div>IF you want to replate your original "Ny=
loc" fasteners, then DON'T have them commercially plated, as it me=
sses up the nylon.=C2=A0 Do them at home with a "Caswell" or othe=
r quality home plating kit. I replated mine for items like the boot hinge f=
asteners, and prop rod where they are not a safely=C2=A0issue.</div><div><b=
r></div><div>Cheers,</div><div><br></div><div>Curt</div><div><br></div><div=
><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"g=
mail_attr">On Mon, Jun 21, 2021 at 12:12 PM Bob Haskell via Healeys <<a =
href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a>> wrote=
:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.=
8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
=20
=20
=20
<div>
<font size=3D"-1"><font face=3D"Courier 10 Pitch">Michael,<br>
<br>
Nothing to add except that the AN7 nyloc nuts I have from Earls
Indy are also 5/8" AF.=C2=A0 <br>
<br>
Never noticed this before. Strange.<br>
</font></font>
<pre cols=3D"72">Cheers,
Bob Haskell
Austin Healey 3000 BN7/BT7 registrar</pre>
<div>On 6/21/21 1:42 PM, Michael Salter via
Healeys wrote:<br>
</div>
<blockquote type=3D"cite">
=20
<div dir=3D"auto">In my aircraft engine days installing a used nyloc
nut was regarded as a cardinal sin.
<div dir=3D"auto">I have just used up the last of my OE 7/16" =
UNF
nyloc big end nuts (AEC328) and have received a box of new
ones from my fastener supplier.=C2=A0</div>
<div dir=3D"auto">What is weird is that these grade 8 nuts are
5/8" AF whereas the originals were 11/16" AF.</div>
<div dir=3D"auto">After making some enquiries it turns out that
grade eight (and for that matter grade five) 7/16" UNF nyloc
nuts are only available as 5/8" AF !!</div>
<div dir=3D"auto">Regular 7/16" UNF nuts are 11/16" AF an=
d 1/2"
UNF nyloc and regular nuts are both 3/4" AF.</div>
<div dir=3D"auto">It seems that this wrench size anomaly is unique
to 7/16" nyloc nuts.</div>
<div dir=3D"auto">Does anyone out there have any idea what this is
all about?</div>
<div dir=3D"auto"><br>
</div>
<div dir=3D"auto">M</div>
<div dir=3D"auto"><br>
</div>
</div>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
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