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  #1  
Old 12-16-2017, 10:36 AM
LettersFromFlyoverCountry's Avatar
LettersFromFlyoverCountry LettersFromFlyoverCountry is offline
 
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Location: St. Paul, MN.
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Default K-1100-08D?

I'm getting kind of tired waiting for bag 3124 (i think) to finally be delivered from back order on the RV-12i fuse kit so I think I'm just going to bite the bullet and buy the parts elsewhere so I can plug along. I've already skipped ahead as far as I dare at this point..

I can't find, however, a platenut named K-1100-08D

I'm hoping the "D" stands for dimpled ears, because I've got a ton of K-1100-08s around and I can just squeeze the dimples myself.

Can anyone confirm?
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  #2  
Old 12-16-2017, 10:50 AM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
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Quote:
Originally Posted by LettersFromFlyoverCountry View Post
I'm getting kind of tired waiting for bag 3124 (i think) to finally be delivered from back order on the RV-12i fuse kit so I think I'm just going to bite the bullet and buy the parts elsewhere so I can plug along. I've already skipped ahead as far as I dare at this point..

I can't find, however, a platenut named K-1100-08D

I'm hoping the "D" stands for dimpled ears, because I've got a ton of K-1100-08s around and I can just squeeze the dimples myself.

Can anyone confirm?
Bob, why would one ever dimple a nut plate ear when NAS rivets can be used? You can use a NAS 1097 and with a few turns of a deburring tool have a countersink. even in .020 material. Much quicker, easier, and cheaper. Hard to beat that. I found the NAS1097AD3-3 are used 99% of the time.

Scott says this technique is listed in Section 5 now.
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Last edited by BillL : 12-16-2017 at 11:04 AM.
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  #3  
Old 12-16-2017, 10:56 AM
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rongawer rongawer is offline
 
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Yes. Dimple away...
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  #4  
Old 12-16-2017, 02:37 PM
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Jesse Jesse is offline
 
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Location: X35 - Ocala, FL
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Quote:
Originally Posted by BillL View Post
Bob, why would one ever dimple a nut plate ear when NAS rivets can be used? You can use a NAS 1097 and with a few turns of a deburring tool have a countersink. even in .020 material. Much quicker, easier, and cheaper. Hard to beat that. I found the NAS1097AD3-3 are used 99% of the time.

Scott says this technique is listed in Section 5 now.
Perhaps quicker, perhaps easier, but realistically the same cost, because you can just dimple the nutplate. We have been doing this since the beginning on other kits, and removing material removes strength. I would definitely take a nested dimple over a countersink any day. Granted, the strength mainly comes from the screw or bolt in the nutplate, but still...
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  #5  
Old 12-16-2017, 03:47 PM
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LettersFromFlyoverCountry LettersFromFlyoverCountry is offline
 
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Quote:
Originally Posted by BillL View Post
Bob, why would one ever dimple a nut plate ear when NAS rivets can be used? You can use a NAS 1097 and with a few turns of a deburring tool have a countersink. even in .020 material. Much quicker, easier, and cheaper. Hard to beat that. I found the NAS1097AD3-3 are used 99% of the time.

Scott says this technique is listed in Section 5 now.
I understand my options. *My* quality control is not to countersink skin this thin and I can dimple a nutplate in a fraction of second.. That's why I'm not asking "is there any other way to attach a nutplate?"
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  #6  
Old 12-16-2017, 05:36 PM
rv7charlie rv7charlie is offline
 
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Location: Pocahontas MS
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To Bill,

The reason(s) *I* dimple them are that I don't have to keep up with yet another rivet type, I don't have to c/s a thin skin, and most of all, dimpled pairs self align much better than when using a c/s hole in the skin. Without nested dimples, the nut plate can actually drift off-center enough to cause issues with screw installation.

2 dimples in the nut plate is such an insignificant time consumer that it's barely noticeable. Mis-alignment of a nut plate, on the other hand....
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  #7  
Old 12-16-2017, 05:38 PM
BillL BillL is offline
 
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Default Dimple if you like . . . .

Dimple if you like, but the NAS rivets in thin material will carry more than enough torque from that nut plate to shear the fastener. I tested some #6 standard cad screws to 50 in-lb before failure. It's experimental, satisfy yourself, do a test.
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  #8  
Old 12-16-2017, 05:45 PM
rv7charlie rv7charlie is offline
 
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Was that a response to my post? If so, I don't think I mentioned torque. C/S-ing a thin skin can compound the misalignment issue.
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  #9  
Old 12-16-2017, 06:55 PM
BillL BillL is offline
 
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Quote:
Originally Posted by rv7charlie View Post
Was that a response to my post? If so, I don't think I mentioned torque. C/S-ing a thin skin can compound the misalignment issue.
Nope, must have been an over post

I have had no issues (that I can recall) with alignment using the NAS rivets, but I can see your point. I have had the hole off, but not relative to the nut plate.

BTW - The latest Section 5 does have this as an approved option for nut plates.
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  #10  
Old 12-16-2017, 10:25 PM
greghughespdx greghughespdx is offline
 
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Dimple the things. Depending on your dimple dies you might have to/find it useful to grind down one side of the die so that might otherwise interfere with the nut part of the nutplate when squeezing. The ears will probably bend a little. They bend back.
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