Exhaust stud flange nut size? Anyone?
Seasoned HDF Member
Joined: Jan 2008
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From: On one of 10,000
I'm sure I got at least one in parts, just didn't have it on the road.
This is the oldest (2012) thread I've resurrected for help. I'll go with the standard nut, and skip the nylock.
"Seize (Locktite) ya later"!
This is the oldest (2012) thread I've resurrected for help. I'll go with the standard nut, and skip the nylock.
"Seize (Locktite) ya later"!
Seasoned HDF Member
Joined: Oct 2019
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From: OH
[QUOTE=inthechateau;9806587]The nut is 1/2", stud is 5/16x20 threads per inch. Standard 5/16 , QUOTE]
Not that it matters 8 yrs later but they are 5/16 x 24 NF (National Fine)
Course thread is 18 tpi. ( NC)
never encountered 5/ 16 x 20
Not that it matters 8 yrs later but they are 5/16 x 24 NF (National Fine)
Course thread is 18 tpi. ( NC)
never encountered 5/ 16 x 20
Ultimate HDF Member
Joined: Jun 2009
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From: OH
Too hot for NY-lok nuts. Use a prevailing torque flange nut instead.
Tourer
Joined: Aug 2019
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From: Dental city
I recently did this fix and found that hardware store nuts didn’t thread on properly. I bought new OEM nuts and they threaded properly. I even wondered if these nuts don’t have a proprietary thread?
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From: OH
Ultimate HDF Member
Joined: Jun 2009
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From: OH
https://www.mcmaster.com/90949A227/
Those are what you're looking for. They have distorted threads that make them anti-vibration similar to a ny-lock nut but unaffected by heat.
Those are what you're looking for. They have distorted threads that make them anti-vibration similar to a ny-lock nut but unaffected by heat.
Seasoned HDF Member
Joined: Jan 2008
Posts: 5,914
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From: On one of 10,000
https://www.mcmaster.com/90949A227/
Those are what you're looking for. They have distorted threads that make them anti-vibration similar to a ny-lock nut but unaffected by heat.
Those are what you're looking for. They have distorted threads that make them anti-vibration similar to a ny-lock nut but unaffected by heat.
Anyways, I looked in my owners manual, part # 7593 is the nut(s) i need. Someone else was correct, for my bike the nut is a 5/16 x 24 thread. Of course I don't have one; off to the hardware store...
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Joined: Sep 2009
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From: South Carolina
the stud is 5/16-18 on the head side and 5/16-24 on the nut side. i use flange carbon nut with anti seize. the reason i do i had a nut seize on the stud once. when i tried to extract nut/stud out of the head the 5/16-18 side(threaded into the head) started galling
and was a booger to get out with out breaking it.
and was a booger to get out with out breaking it.
Seasoned HDF Member
Joined: Oct 2019
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From: OH
the stud is 5/16-18 on the head side and 5/16-24 on the nut side. i use flange carbon nut with anti seize. the reason i do i had a nut seize on the stud once. when i tried to extract nut/stud out of the head the 5/16-18 side(threaded into the head) started galling
and was a booger to get out with out breaking it.
and was a booger to get out with out breaking it.
Thank you