First, the torque guides I know of are based on fastener/thread and then by application (shear/tension). I use the Standard Aircraft Maintenance Handbook, which lists the AN3 (10-32) as 20-25 in/lbs in tension. The AN515-8R8 fastener is an 8-32 screw but the guide works for screws as well: 12-15 in/lbs. Nutplates are rarely used in shear.
A section on design criteria covers the derivation of torque formulas, loads on a fastener group, combining simultaneous shear and tension loads, pullout load for tapped holes, grip length, head styles, and fastener strengths. The second half of this manual presents general guidelines and selection criteria for rivets and lockbolts.
The fixture prevents fouling of the clearance hole. No additional tools are needed for making the nutplate attachment. This fastener meets or exceeds the standards set by MIL-N-25027 for push-out, torque-out, and cycle life. Bonded
Click Bond's adhesive-bonded rivetless nutplates eliminate the drilling of rivet holes associated with nutplate installation, preserving structural integrity. These anchor nuts also called nutplates or nutplates, incorporate a floating nut design for ease of alignment and replacement of the nut element without reworking the installation location.
