The answer to that question is, of course, no. This method may save the string from coming loose during play, or it may allow the string to slip from the tension without cracking the body.
The string pegs, which are glued to the bottom surface of the body, are glued to the frame through an adhesive. You need an appropriate glue, like Nylon 6, which I use.
The other glue used is a type of varnish called “Flemish”. In fact, as you might think, you don’t have to use glue in this case because the violin body is quite porous and so the violin pegs stay in place nicely without it.
One thing to watch
As you can hear, the glue for the wood pegs gets quite sticky. It can get quite thick. The reason for this can be that the glue is actually water- based. Water-based varnishes usually leave very sticky, but not all, glue, especially if it is too thick.
Here’s what happens if you need to move more than one peg after you are done playing. At a certain point, the glue starts sticking to the peg faces, so you have to remove one peg to replace it.
This can be avoided by simply letting them soak a bit, and then moving them to another peg so they stay in that position. You probably should do this in your violin-building time, if not as long as you make any repairs. Also see this article to learn how to get rid of glue sticks.
But if some glue sticks to the headboard of the violin for example, it can leave pegs stuck to the headboard which cannot be removed. (See page 6, 7, 8 of this article.)
How to remove one peg in practice
There are a number of ways to remove the peg head from the peg socket. The first is to take out just the peg head, the peg body is then removed by pulling the peg socket down, using one hand. The other hand helps you lift the peg socket to get to the peg head. It is important, however, that you don’t have to use your fingers, instead, use your tongue. The second way, shown here, is to use very thin, flat fingernails that you can apply a piece of tape over the opening at the end of the peg.
This method does indeed remove the peg head and then allows the peg socket to be pushed out later.