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Nut tensile required for forward horrozontal stab mount point

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Flow

Well-Known Member
Joined
Apr 27, 2016
Messages
130
Location
Auckland
Hi folks, we are looking to add an other 1/4" of 5ply on top of this doubler and struggling to get the right length AN bolts. If we use a thin series nut MS21083-428A with a min tensile strength of 2290lbs and one washer rather than two in the photo below then an AN4-66A will work we cant get a -67 unfortunately.

The existing MS21044-428A nut has a tensile strength of 4580lbs. The question is will the wood break before the thin series nut or do I need to stick with the 4580lbs nut.

Here is a photo of the doubler we are planning to add an additional 1/4" of 5ply to.

200226_023B.jpg
 
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