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-   RV Building Tips/Techniques (https://vansairforce.net/community/forumdisplay.php?f=74)
-   -   Dimpling Nutplates (https://vansairforce.net/community/showthread.php?t=88272)

GeoffP 12-09-2019 02:11 PM
Pre-dimpled nutplates
 
I've bought dimpled nutplates, in the same sizes that Van's use in many applications. It gives me a choice, and if my memory serves me correctly it's the same part number with a "K" at the end.

Sue 12-09-2019 03:05 PM
Dimpled nutplates
 
The glaring question I have to ask is
why not just get dimpled nutplates?

rocketman1988 12-09-2019 03:22 PM
Nut plate
 
I am really not sure why this is even an issue; it takes like five seconds to dimple the mounting ears on a nut plate with a hand squeezer.

BillL 12-09-2019 03:25 PM
Agree . . .
 
Quote:
Originally Posted by rocketman1988 (Post 1391818)
I am really not sure why this is even an issue; it takes like five seconds to dimple the mounting ears on a nut plate with a hand squeezer.
Or just use NAS rivets. A flush head can install a nut plate in .025 material just fine. And much less time investment in the entire process.

BobTurner 12-09-2019 05:23 PM
Quote:
Originally Posted by GeoffP (Post 1391800)
I've bought dimpled nutplates, in the same sizes that Van's use in many applications. It gives me a choice, and if my memory serves me correctly it's the same part number with a "K" at the end.
IIRC the part number with the K suffix is manufactured to accept a dimple nested into the center hole - the threaded one - for use with flat head screws. The discussion here concerns dimpled ?ears?, the ones usually riveted on.

bcondrey 12-09-2019 05:29 PM
There are dimpled nutplates available from Van?s, they are supplied in the RV-12 kits. They have a ?D? suffix (i.e. K1000-08D). Not sure what additional sizes are available, as others have said, pretty quick to just dimple standard nutplates or use NAS rivets.

GeoffP 12-09-2019 06:21 PM
Quote:
Originally Posted by BobTurner (Post 1391836)
IIRC the part number with the K suffix is manufactured to accept a dimple nested into the center hole - the threaded one - for use with flat head screws. The discussion here concerns dimpled ?ears?, the ones usually riveted on.
The part number for some of the ones I bought were MS21047L06K, and these certainly had the dimpled ears for countersunk rivets. The part description is "6-32 THREAD, SELF-LOCKING NUTPLATE, TWO LUG, LOW HEIGHT, CADMIUM PLATED CARBON STEEL, 450 DEG F, WITH DRY-FILM LUBE, COUNTERSUNK RIVET HOLES

ALT. PART NUMBER: NAS680A06K"

Girraf 12-09-2019 07:02 PM
Quote:
Originally Posted by BillL (Post 1391819)
Or just use NAS rivets. A flush head can install a nut plate in .025 material just fine. And much less time investment in the entire process.
A seasoned builder saw a dimpled nutplate on my project and asked why in the world I would do that. Told me about NAS1097 rivets. I started using them and never looked back.

BobbyLucas 12-10-2019 07:11 AM
Quote:
Originally Posted by BillL (Post 1391819)
Or just use NAS rivets. A flush head can install a nut plate in .025 material just fine. And much less time investment in the entire process.
Dang, looks like the RV-12 skin is only ~0.018, at least the piece I measured, which was the rudder. Steps away... Ok, got about 0.023 on the VS where the 18 nutplates were, not sure if that is 0.025 nominal?

BillL 12-10-2019 04:09 PM
Quote:
Originally Posted by BobbyLucas (Post 1391938)
Dang, looks like the RV-12 skin is only ~0.018, at least the piece I measured, which was the rudder. Steps away... Ok, got about 0.023 on the VS where the 18 nutplates were, not sure if that is 0.025 nominal?
Yes .025 as stamped on the sheets. It may work for thinner, you should try it before committing to its use.

I like the NAS as you can just countersink with the deburring tool. I do 7 rounds and it is done. YMMV as always.


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