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Old 05-13-2022, 11:04 PM
ryane67 ryane67 is offline
Join Date: Feb 2020
Location: Lake Orion, MI
Posts: 49
Default Rivet callouts on 10-13 bottom skin - check your lengths before setting!

Maybe it belongs in the Wiki, Im not sure..

on page 10-13 it states AN426AD3-3.5 rivets for all of those bottom skin holes.

Thing is, the page has been modified to include the SB shear clips, which adds another .025 thickness and there's no way you properly set a 3.5 rivet through that much aluminum... well, no way Im going to properly set it. I ended up messing these holes up kind of bad and went with 1097 4-4.

Just be sure to check the length of these 4 rivets before you set them and have to make a mess yourself.
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Old 05-14-2022, 09:10 AM
coffeeguy coffeeguy is online now
Join Date: Jul 2015
Location: Lake in the Hills, IL
Posts: 234

There are more than a few areas where this is the case. The manual tells you how to do it and tells you the rivet length, but you should always go with what is appropriate. If you don't have one get a rivet gauge that you can measure the length of the rivet before you set it. You can make the determination of what length to use. Skin to skin or skin on stringer, yeah, that's not going to change, but when you add clips, then that may change. Your eyeball gets pretty good at seeing what is acceptable and whats not. Sometimes when it's not clear if you should go with a longer or shorter rivet then you have to decide, is it closer to the long one or short one? If you set a shorter one will you have a big enough shop head, if you set a longer one can you do it without clinching it?

Sounds harder than it is, but in the end you have to decide. When you get more experience you'll just use the next size longer and move on.
Jeff Dingbaum
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Old 05-14-2022, 10:05 AM
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wirejock wirejock is offline
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 5,224
Default Rivet cutter

Also, buy a rivet cutter. Easy to clip a long rivet to the perfect size. All the extra parts also take up some aluminum so a longer rivet might actually work better when it swells to fill all that space.
Larry Larson
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Old 05-16-2022, 10:17 AM
PatMac PatMac is offline
Join Date: Feb 2021
Location: Louisville
Posts: 56

Have found this to be the case on several rivets so far. Cutter and upsizing seems to be the perfect solution.
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Old 05-24-2022, 07:27 PM
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DonJr DonJr is offline
Join Date: Jul 2021
Location: Arlington
Posts: 35

Good idea to remember: The length of the rivet should be equal to the thickness of both objects you are fastening, plus 1.5 times the diameter of the rivet's stem.

Last edited by DonJr : 05-24-2022 at 07:31 PM.
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