blackrock wrote:
The neatest tool, if you can find one is called a Winslow gun. Makes installing nut plates much faster and easier.
(off topic, addressing an alternate to the Winslow tool for nut plates)
FWIW, I found that a machine screw glued into a short length of 1/4 or 3/8 bushing stock (phenolic or aluminum) can make the nutplate process faster, but on a cheapskate budget. It can fit into a tight area where you couldn't use a cleco through the nut plate screw hole.
You cut the bushing length so that only three threads of the machine screw are exposed. Drill the hole where you want the nut plate screw to go. Insert the tool through the
back side, leaving just one or two threads sticking out of the skin on the front side. You only want there to be enough threads outside the skin to engage the threaded hole in the nut plate, but not enough so that the screw gets into the self-locking feature of the nut plate (nylon insert, oval hole, crimp, etc.).
Screw the nut plate onto these two threads (from the incorrect, outer side of the skin), spin the nut plate into the correct position, and then tighten the screw tool using the bushing piece as a finger knob (this is the reason for the glue

)
Now you can drill one of the rivet holes using the nut plate as a guide, knowing that the screw is holding the nut plate at exactly the right spacing.
Now put one AN rivet through the nut plate and also through the skin. (on larger size nut plates you can use a Cleco, on smaller ones you have to "pin" it with a rivet). If you need both hands on the drill for precision work, then just tape the rivet into position instead of holding it with your finger.
Now you can drill the final rivet hole with 100% confidence that you have all the holes aligned, and that the screw will be perfectly centered in the hole after you buck or squeeze the rivets.
Remove the nut plate, tape, rivet, Cleco if used, and the screw tool. Now de-burr and vacuum all the shavings, prime as desired, and install your nut plate on the inside of the skin.
From my limited experience, I highly recommend the use of "riveter's tape" to place
both rivets into position before squeezing or bucking the first rivet. If you don't, this sh*t always moves around a little when the rivet expands and the second rivet often doesn't want to go in.