here's a link very interesting for parts of neck lock nut :
http://www.wammiworld.comfollow these steps : Guitar and bass Parts /Accessories>Kahler Parts>Replacements Parts
you just scroll down the web page and discover the lock nut used by ARIA
which was made also for very known Gibson models in 80's. Click on the lock nut picture
And if you need parts of this like : screw and so on .......
see on the drawing with this topic (Be carefull this is the property of Khaler copyright !!!)
just select the number of the part you need and the mouse change when you go through
the drawing.
Something more : Thank's to wammiworld cose company very usefull and human people,
what you get is what you want, for example 5 days from America to France.