Quote Originally Posted by jugglindan View Post
Actually, they are not self-tapping. Just M2.5 x 12mm wood screws (the ones with a sharp point). Self-tapping wouldn't work as well since they are more blunt and would need a pilot hole to get started. I can just send you my spares.
Self-tapper or wood screw makes no difference. They both should have a pilot hole or there is a very good chance of twisting those little heads off. Especially with little ones like tuner, string tree or truss rod cover screws and especially if they're going into maple.
There isn't one screw, regardless of size, in a guitar that I don't pre-drill. It's just asking for trouble not to.

If you ever have a tuner screw break off, you're in for some fun fixing it. Completely doable, but it's a PITA and there's not much room for hiding the repair.