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You do not want rivets sticking up and interfering with the part you are going to be attaching with a screw. |
I see a little need for more exposure here
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Bob Axsom |
Well when that happens
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Bob Axsom |
Try countersinking a tad too far on scrap....
(For nut plates)... you can see that the rivet will "backfill" somewhat and often make an acceptable squeeze. If you countersink for nas1097 rivets and you went too deep, keep going for a normal 426ad3 rivet. I often got the required depth just using the hand deburring tool with the countersink bit. You sure dont need much for those tiny heads. You quickly learn the right looking depth.
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nutplates
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The nutplates you have are for the rod ends that are used as pivot bearings for the rudder. They are probably i/4" or 5/16" thread size. There is not an issue with clearance there. Later, you will be installing a lot of #6. and #8 size nut plates, which will be used to fasten a part flat on the part the nutplate is mounted to, like inspection covers, or the fairing at the tail. In this case, the surface on top of where the nutplate is mounted must be flat, thus the dimple/countersink for the rivet. |
If you happen to have a Knipex 8603-180 7 inch wrench, just use 426A (soft) rivets for most all of your edge nut plates.
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got it!
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Mike, now would be a good time to be in Cameron Park. We got 12" of snow so far last night and it is still coming down like crazy. My satellite dish is covered and we are not getting TV! ugg! |
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