13-03 Nutplate Extravaganza

Since there are lots of nutplates, I needed an efficient system to secure them in the correct place for riveting. In the end what worked best for me was the following:

  1. Position all rivets along a row.
  2. Place on the nutplates.
  3. Clamp a nutplate.
  4. Drive a screw with a cordless drill just short of the countersink.
  5. Nip gently with a handheld screwdriver – avoiding damage to the priming!
  6. Remove clamp & apply to next nutplate ready for repeating the process.
  7. Rivet.

The placed rivets located the nutplate during screw insertion, and the clamp allowed a gentle pressure to be applied to prevent the screwdriver bit slipping in the screw head.

Gentle nip with a normal screwdriver.

Boelube – TOP TIP

When I tried to insert a screw into a nutplate whilst secured in a vice as a test I discovered the screws were a VERY tight fit! A bit of research resulted in a TOP TIP …. apply Boelube to the thread and it becomes much easier. I used this on the single screw I sacrificed to centre all the nutplates.


Rivets set with Pneumatic Squeezer.

During repeated squeezes … and there is a LOT of that … the set can rotate and hence go out of adjustment. Once the set is adjusted I mark the shaft and check/adjust frequently.


The result.

Phillips ACR Screwdriver Bit – TOP TIP

ACR is a Phillips trademark, and means the screwdriver bit incorporates tiny grooves on the contact surfaces allowing a better “grip”. The PH2 with ACR proved a perfect fit in the #6 & #8 nutplate screws … even though a high torque was needed for each nutplate, no slippage occurred using this bit, and I only needed one screw per type of nutplate for the whole job. In fact the cross on the screw is completely undamaged! I think ACR stands for Anti Cam-Out Ribs.

1 Comment on "13-03 Nutplate Extravaganza"

  1. On the fuselage I was able to place one rivet and then hold the nutplate with a finger whilst I squeezes the other rivet. Only works for dimpled nutplates and for people with titanium fingers.

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