Grade of Bolt for frame sliders? - Wrist Twisters
 
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post #1 of 6 Old 05-02-2012, 08:47 PM Thread Starter
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Grade of Bolt for frame sliders?

OK there has been some debate before but id like to create a legit thread on the subject.

I like many others have frame sliders on my 919, mounted to thread tapped holes in the frame.

When i was looking for a suitable bolt that would be a decent size that would still be able to fit a socket down on the head inside the slider i ended up with i think a 27/64ths grade 8 bolt.

Now becides the size... as that really dont matter and is not the subject of the question.

Is grade 8 the right choice for such an application? Or would a lesser grade that is more plyable better for a frame slider.

Discuss!

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post #2 of 6 Old 05-03-2012, 06:21 PM
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Quote:
Originally Posted by nd4spdbh View Post
OK there has been some debate before but id like to create a legit thread on the subject.

I like many others have frame sliders on my 919, mounted to thread tapped holes in the frame.

When i was looking for a suitable bolt that would be a decent size that would still be able to fit a socket down on the head inside the slider i ended up with i think a 27/64ths grade 8 bolt.

Now becides the size... as that really dont matter and is not the subject of the question.

Is grade 8 the right choice for such an application? Or would a lesser grade that is more plyable better for a frame slider.

Discuss!
I used metric 8.8s.
If SAE I would have used Grade 5s.
The bolt will be subjected to bending if called upon.
8.8s and Grade 5s will be superior, as the fastening application hardly even has a tensile clamping force component at all.

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post #3 of 6 Old 05-03-2012, 07:23 PM
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Quote:
Originally Posted by mcromo44 View Post
I used metric 8.8s.
If SAE I would have used Grade 5s.
The bolt will be subjected to bending if called upon.
8.8s and Grade 5s will be superior, as the fastening application hardly even has a tensile clamping force component at all.
Discussion over!! lol

I agree as well Mcromo

Again your post is easy to read and understand!!

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post #4 of 6 Old 05-03-2012, 08:55 PM Thread Starter
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sounds good looks like ill be switching to some grade 5's ... i dont want to eff the frame up in the case of a laydown.

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post #5 of 6 Old 05-03-2012, 09:28 PM
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Quote:
Originally Posted by nd4spdbh
sounds good looks like ill be switching to some grade 5's ... i dont want to eff the frame up in the case of a laydown.
Wouldn't it be better to bend the bolt than tweak the frame or break off a mount point?

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post #6 of 6 Old 05-03-2012, 10:13 PM Thread Starter
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Originally Posted by 2002-919 View Post
Wouldn't it be better to bend the bolt than tweak the frame or break off a mount point?
yes... and thats why ill drop from the SAE grade 8 to the SAE grade 5.

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