Then fitting the neck in position carefully transferred the pilot holes into the neck. I then took the neck out of the body and drilled to full size 1/8" diameter x 3/4" deep the holes for the screws. Then I drilled clearance holes in the body.
The screws are actually around #8 or 4mm in diameter and needed some wax to screw into the neck but went in without stripping or breaking.
I drilled some counter-bores with a 6mm drill bit for the magnets to hold the cover plates on. Into these I used some CA glue to fix some rare earth magnets (6mm dia x 1mm thick) in place. There are also corresponding holes drilled into each of the covers. They fix in place with a satisfying "plop" noise and are very secure. No screws showing on this build. To open the covers I have a finger nail grove and slot cut in the cover and body.
Making a nut
The nut is made from a bone blank and was first thicknessed on some sandpaper so it fitted in the dado (slot) I had cut in the fretboard in an earlier post.Then using a pencil that was cut down the middle with its lead sharpened to a chisel point I scribed the profile of the 1st fret onto the bone
| Here you can see the pencil sliced down the middle |

