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11-09-2016, 04:29 PM
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Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,931
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Odd question
I'm sure there's a reason.
Can someone explain why an AN515-10R screw is 10-24? AN509-10R screw, AN3 bolt, AN365-1032 nut and K1000-3 nutplate are all 10-32?
Just curious.
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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11-09-2016, 04:49 PM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,027
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It is a courser thread for specific applications.
In the case of RV's, it is used on some holes on the engine that are tapped in aluminum. 10-32 threads tapped in aluminum would be rather fragile.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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11-09-2016, 04:52 PM
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Join Date: Sep 2006
Location: Defiance, MO
Posts: 1,666
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AN515 has reduce capability over the others with higher threads per inch. It should be used in less loaded applications. My guess is they use less threads where you have less load to make it easier/quicker to install/remove.
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Philip
RV-6A - 14+ years, 900+ hours
Based at 1H0 (Creve Coeur)
Paid dues yearly since 2007
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11-09-2016, 04:58 PM
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Join Date: May 2005
Location: X35 - Ocala, FL
Posts: 3,679
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It's either for less load or for going into aluminum where the courser threads will have thicker threads in the hole for strength in softer material.
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Jesse Saint
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11-09-2016, 08:17 PM
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Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,931
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Thanks
Thank you.
__________________
Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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