Re: [VAL] Riv-nuts are an answer

["Tom" <thomm@xxxxxxxxxxxxxxx>]

The rivnuts use a machine screw thread pitch which is a lot finer pitch than 
say a sheet metal screw would be.

To install rivnuts you also need a notching tool for the precisely sized 
drilled hole for starters.  And you need a rivnut pulling tool which can be 
of the squeeze handled variety or the smaller sized unit which uses wrenches 
to pull the rivnut instead.  A notching tool is essential as the rivnut has 
an index underneath the wide head; the notch keeps the rivnut from spinning 
in the hole.  If a notching tool isn't used it can be a real headache to 
drill out a spinning fastener not to forget that the head of the rivnut 
needs to lay flat on the surface of the sheet material it is installed into.

Tom Meeker
WBCCI 5303 - FAA licensed Airframe and Powerplant mechanic in another life