Looking to assemble a guitar body and neck using machine screws? Here's some instructions to get you going.

A list of supplies you'll need, all from http://www.mcmaster.com. Just type in the part numbers in the search bar on their website.
threaded inserts (P/N 90248A018)
bottoming tap drill (P/N 2521A642)
stainless steel oval head screws (P/N depends on the length screw you need, I used 91802A203 [1-1/2"] and 91802A204 [1-3/4"]) !!!MAKE SURE TO VERIFY WHAT LENGTH SCREWS YOU NEED!!!

Feel free to leave any comments or questions.