Originally Posted by Ralph Inkster
Clarification of above process - this applies to fiberglass fairing’s & components only.
If you have a metal to metal cover that you wish to convert, much bigger process involving dimpling, changing nut plates, & probably some painting
Yes, metal may require dimpling. However, there are some situations when a metal piece can be countersunk too. It depends on the thickness of the metal and the diameter of the Tinnerman washer. As for the question asked by the original poster, I replied with the notion he was asking about fiberglass.