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Torque value for AN-3 bolt into a nutplate

Meat

Active Member
Patron
Can someone smart please clarify the torque value used for nutplates? Are they the same as nuts? Referencing AC 43.13, Table 7-1 do you use the torque table values for tension or shear? I can't find anything specific in there regarding nutplate torques.
I'm working on the elevator bellcrank torqueing eight AN-3 bolts into K1000-3 nutplates. I used 38 in/lb total. 23 in/lb for the bolt per AC 43.13 + 15 in/lb of friction drag for a fresh nutplate. Is this correct?

I appreciate everyone's time and the collective wisdom of the group.

Cheers,

Scott Davis
QB RV-14 #140702
Empennage finished
Working on fuselage
 
Its still going to be 20-25 in/lbs plus drag torque. Use a small beam torque wrench to measure drag torque. Then, add that value to the specified torque for your final torque value.

Its really easy to over-torque AN-3 bolts and mess up the anchor nut. That can make a really bad day.
 
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