Hi all,
times goes by and finding all those scripts again on the forum was not as easy as I hoped. Anyway here are the download links to the most recent versions of the thread cutting scripts

External threads
makeExternalThread-Oct-17-2012.zip
http://moi3d.com/forum/index.php?webtag=MOI&msg=5451.1

Internal threads
makeThreadTap-Oct-19-2012.zip
http://moi3d.com/forum/index.php?webtag=MOI&msg=5473.1

Hex rods
makeHexRod.zip (improved by Max Smirnov)
http://moi3d.com/forum/index.php?webtag=MOI&msg=5489.10

Note that you can customize the scripts by opening the .htm file in a text editor. Instructions can be found in the text.

-Martin