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Re: [Fot] Bolts and Threads

To: levilevi@comcast.net, fot@autox.team.net
Subject: Re: [Fot] Bolts and Threads
From: Bruce Lapierre <fasttr4@aol.com>
Date: Thu, 24 Nov 2016 17:41:12 -0500
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <68A3C9D4-F18A-486E-8FFF-F01A820B3F0C@comcast.net>
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Try McMaster-Carr
=20
=20
-----Original Message-----
From: Bud R <levilevi@comcast.net>
To: fot <fot@autox.team.net>
Sent: Thu, Nov 24, 2016 1:41 pm
Subject: [Fot] Bolts and Threads



The Collective,


I=E2=80=99m working on the Spitfire=E2=80=99s traverse leaf swing spring re=
ar suspension and can=E2=80=99t find locally the 7/16=E2=80=9D  fine thread=
 (20 tpi) by 3 1/2=E2=80=9D bolts that were holding the vertical link and t=
o the trunnions and to the swing spring bushings.


I can find the right sizes in a coarse thread (12 tpi) grade 8 bolt and tha=
ts my plan. The old ones are grade 5 or in one case a bolt with no slash ma=
rks on top. I don=E2=80=99t know what it is.

=20
Do these bolts need to be fine thread for any particular reason, e.g. for s=
afety, torque specs, etc.? Is a grade 8 bolt a good idea where it will be s=
tressed with all the up and down motion with the vertical link? Too brittle=
? Usually I go for grade 8 whenever possible but I=E2=80=99ve heard there a=
re instances where it might not be the best solution.


An aside for Thanksgiving:=20
My son and his wife teaching in Shanghai said the Chinese love to celebrate=
 American holidays (they know them from American TV and movies) but their t=
ake on Thanksgiving is that you thank people who do nice things for you. So=
 they got cards from their students thanking them for teaching. Kind of a d=
ifferent twist but a good one I thought.


Happy Thanksgiving to all.







Thanks,
Bud Rolofson


Extreme Parts Racing (more than just a haircut)


71TR6 CC57365 (Good 6)
71 Spitfire MK IV Race Car #3
69 Spitfire MK 3 (back up FE engine/dinghy car)
93 Minnie Winnie Race Support Vehicle=20
77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)


























_______________________________________________
fot@autox.team.net

http://www.fot-racing.com

Archive: http://www.team.net/archive
om




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<font color=3D'black' size=3D'2' face=3D'arial'>
<div><font face=3D"Arial, Helvetica, sans-serif" style=3D"background-color:=
 transparent;">Try McMaster-Carr</font></div>

<div>&nbsp;</div>

<div>&nbsp;</div>

<div style=3D"color: black; font-family: arial,helvetica; font-size: 10pt;"=
>-----Original Message-----<br>
From: Bud R &lt;levilevi@comcast.net&gt;<br>
To: fot &lt;fot@autox.team.net&gt;<br>
Sent: Thu, Nov 24, 2016 1:41 pm<br>
Subject: [Fot] Bolts and Threads<br>
<br>


<div id=3D"AOLMsgPart_1.2_41e257e0-4eea-4c4d-8371-863e0866c679">

<div class=3D"aolReplacedBody" style=3D"-ms-word-wrap: break-word; -webkit-=
nbsp-mode: space; -webkit-line-break: after-white-space;">
<div>The Collective,</div>

<div><br>
</div>
I=E2=80=99m working on the Spitfire=E2=80=99s traverse leaf swing spring re=
ar suspension and can=E2=80=99t find locally the 7/16=E2=80=9D &nbsp;fine t=
hread (20 tpi) by 3 1/2=E2=80=9D bolts that were holding the vertical link =
and to the&nbsp;trunnions and to the swing spring bushings.
<div><br>
</div>

<div>I can find the right sizes in a coarse thread (12 tpi) grade 8 bolt an=
d thats my plan. The old ones are grade 5 or in one case a bolt with no sla=
sh marks on top. I don=E2=80=99t know what it is.<br>

<div>&nbsp;
<div>Do these bolts need to be fine thread for any particular reason, e.g. =
for safety, torque specs, etc.? Is a grade 8 bolt a good idea where it will=
 be stressed with all the up and down motion with the vertical link? Too br=
ittle? Usually I go for grade 8 whenever possible but I=E2=80=99ve heard th=
ere are instances where it might not be the best solution.</div>

<div><br>
</div>

<div>An aside for Thanksgiving:&nbsp;</div>

<div>My son and his wife teaching in Shanghai said the Chinese love to cele=
brate American holidays (they know them from American TV and movies) but th=
eir take on Thanksgiving is that you thank people who do nice things for yo=
u. So they got cards from their students thanking them for teaching. Kind o=
f a different twist but a good one I thought.</div>

<div><br>
</div>

<div>Happy Thanksgiving to all.</div>

<div><br>
</div>

<div>
<div>
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; border=
-spacing: 0px;">
<div style=3D"-ms-word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-=
line-break: after-white-space;"><span class=3D"Apple-style-span" style=3D"t=
ext-indent: 0px; orphans: 2; widows: 2; -webkit-text-decorations-in-effect:=
 none;">
<div style=3D"-ms-word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-=
line-break: after-white-space;"><span class=3D"Apple-style-span" style=3D"t=
ext-indent: 0px; orphans: 2; widows: 2; -webkit-text-decorations-in-effect:=
 none;">
<div style=3D"-ms-word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-=
line-break: after-white-space;"><span class=3D"Apple-style-span" style=3D"t=
ext-indent: 0px; orphans: 2; widows: 2; -webkit-text-decorations-in-effect:=
 none;">
<div style=3D"-ms-word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-=
line-break: after-white-space;"><span class=3D"Apple-style-span" style=3D"t=
ext-indent: 0px; orphans: 2; widows: 2; -webkit-text-decorations-in-effect:=
 none;">
<div style=3D"-ms-word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-=
line-break: after-white-space;"><span class=3D"Apple-style-span" style=3D"t=
ext-indent: 0px; orphans: 2; widows: 2; -webkit-text-decorations-in-effect:=
 none;">
<div style=3D"-ms-word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-=
line-break: after-white-space;"><span class=3D"Apple-style-span" style=3D"t=
ext-indent: 0px; orphans: 2; widows: 2; -webkit-text-decorations-in-effect:=
 none;">
<div style=3D"-ms-word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-=
line-break: after-white-space;"><span class=3D"Apple-style-span" style=3D"t=
ext-indent: 0px; orphans: 2; widows: 2; -webkit-text-decorations-in-effect:=
 none;">
<div>
<div style=3D"color: rgb(0, 0, 0); text-transform: none; line-height: norma=
l; letter-spacing: normal; font-family: Helvetica; font-style: normal; font=
-variant: normal; font-weight: normal; word-spacing: 0px; white-space: norm=
al; border-collapse: separate; border-spacing: 0px; -webkit-text-stroke-wid=
th: 0px;">Thanks,<br class=3D"Apple-interchange-newline">Bud Rolofson</div>

<div style=3D"color: rgb(0, 0, 0); text-transform: none; line-height: norma=
l; letter-spacing: normal; font-family: Helvetica; font-style: normal; font=
-variant: normal; font-weight: normal; word-spacing: 0px; white-space: norm=
al; border-collapse: separate; border-spacing: 0px; -webkit-text-stroke-wid=
th: 0px;"><br>
</div>

<div style=3D"color: rgb(0, 0, 0); text-transform: none; line-height: norma=
l; letter-spacing: normal; font-family: Helvetica; font-style: normal; font=
-variant: normal; font-weight: normal; word-spacing: 0px; white-space: norm=
al; border-collapse: separate; border-spacing: 0px; -webkit-text-stroke-wid=
th: 0px;">Extreme Parts Racing&nbsp;(more than just a haircut)</div>

<div style=3D"color: rgb(0, 0, 0); text-transform: none; line-height: norma=
l; letter-spacing: normal; font-family: Helvetica; font-style: normal; font=
-variant: normal; font-weight: normal; word-spacing: 0px; white-space: norm=
al; border-collapse: separate; border-spacing: 0px; -webkit-text-stroke-wid=
th: 0px;"><br>
</div>

<div>71TR6 CC57365 (Good 6)</div>

<div style=3D"color: rgb(0, 0, 0); text-transform: none; line-height: norma=
l; letter-spacing: normal; font-family: Helvetica; font-style: normal; font=
-variant: normal; font-weight: normal; word-spacing: 0px; white-space: norm=
al; border-collapse: separate; border-spacing: 0px; -webkit-text-stroke-wid=
th: 0px;">71 Spitfire MK IV Race Car #3</div>

<div style=3D"color: rgb(0, 0, 0); text-transform: none; line-height: norma=
l; letter-spacing: normal; font-family: Helvetica; font-style: normal; font=
-variant: normal; font-weight: normal; word-spacing: 0px; white-space: norm=
al; border-collapse: separate; border-spacing: 0px; -webkit-text-stroke-wid=
th: 0px;">69 Spitfire MK 3 (back up FE engine/dinghy car)</div>

<div style=3D"color: rgb(0, 0, 0); text-transform: none; line-height: norma=
l; letter-spacing: normal; font-family: Helvetica; font-style: normal; font=
-variant: normal; font-weight: normal; word-spacing: 0px; white-space: norm=
al; border-collapse: separate; border-spacing: 0px; -webkit-text-stroke-wid=
th: 0px;">93 Minnie Winnie Race Support Vehicle&nbsp;</div>

<div style=3D"color: rgb(0, 0, 0); text-transform: none; line-height: norma=
l; letter-spacing: normal; font-family: Helvetica; font-style: normal; font=
-variant: normal; font-weight: normal; word-spacing: 0px; white-space: norm=
al; border-collapse: separate; border-spacing: 0px; -webkit-text-stroke-wid=
th: 0px;">77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)=
</div>
</div>

<div style=3D"font: 12px/normal Helvetica; color: rgb(0, 0, 0); text-transf=
orm: none; letter-spacing: normal; word-spacing: 0px; white-space: normal; =
border-collapse: separate; border-spacing: 0px; -webkit-text-stroke-width: =
0px;"><br>
</div>

<div style=3D"font: 12px/normal Helvetica; color: rgb(0, 0, 0); text-transf=
orm: none; letter-spacing: normal; word-spacing: 0px; white-space: normal; =
border-collapse: separate; border-spacing: 0px; -webkit-text-stroke-width: =
0px;"><br>
</div>
</span><br class=3D"Apple-interchange-newline"></div>
</span><br class=3D"Apple-interchange-newline"></div>
</span><br class=3D"Apple-interchange-newline"></div>
</span><br class=3D"Apple-interchange-newline"></div>
</span><br class=3D"Apple-interchange-newline"></div>
</span><br class=3D"Apple-interchange-newline"></div>
</span><br class=3D"Apple-interchange-newline"></div>
</span><br class=3D"Apple-interchange-newline" style=3D"font: 18px/normal H=
elvetica; color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; lett=
er-spacing: normal; word-spacing: 0px; white-space: normal; -webkit-text-st=
roke-width: 0px;"><br class=3D"Apple-interchange-newline">
</div>

<br>
</div>
</div>
</div>
</div>

</div>

_______________________________________________<br>
<a href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a><br>
<br>
<a href=3D"http://www.fot-racing.com"; target=3D"_blank">http://www.fot-raci=
ng.com</a><br>
<br>
//www.team.net/donate.html</a><br>
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ww.team.net/archive</a><br>
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.team.net/forums</a><br>
sttr4@aol.com" target=3D"_blank">http://autox.team.net/mailman/options/fot/=
fasttr4@aol.com</a><br>
<br>
<br>
</div>
</font>
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_______________________________________________
fot@autox.team.net

http://www.fot-racing.com

Archive: http://www.team.net/archive



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