|This picture show two different ways to
mount the plugs.
On the left: I first drilled a 1 1/8 inch hold from
the top just until the tip of the spade bit started to come through. I
then drilled from the back with a 1/14 inch spade bit. I was very
careful to keep everything lined up and did not drill all the way
though. This left a small lip that the "tip" of the plug filled in very
nice. This was not easy.
On the right: This is just a simple 1 1/4 inch hole. Notice how you
can see the end of the threads. This is very quick and easy but not as
I tried the left method and was not lined up right on a couple of
hole. So I just drilled all the way through and changed to the right