You know, I've heard people say this before and believed it. but then I picked up a copy of AC 43.13 (Acceptable Methods, Techniques, and Practices - Aircraft Inspecition and Repair )
On 7-40.c. (Page 7-6 in the Jeppsesen version), it says Run the nut down to near contact with the washer or bearing surface and check the friction drag torque required to turn the nut. Whenever possible, apply the torque to the nut and not the bolt. This will reduce rotation of the bolt in the hole and reduce wear.
Is there somewhere in AC43.13 that provides additional guidance on bolt vs. nut?
//adding 5"lb for an AN3 Nylon Lock Nut and 15"lb for an AN4.
I believe the An3 is 20-25 and the AN4 is 50-75. It seems that torquing to the upper end of the parameters would suffice. Wouldn't it?
I also recall someone saying if you add an extension to a ratchet wrench, you would have to calculate a higher torque (using the formula that presently escapes me). But I believe this would not be the case for extensions perpendicular ro the wrench, but for extensions that add length to the wrench (i.e. extend the wrench's centerline). . Is that correct?