Hi guys! Been a long, long while since I've been able to get back to any of this. With the advent of WizoScript, things have gotten a lot easier from a coding perspective. And now, after a free afternoon, I submit to you the first draft of the new Screw Selector... Right now only SHCS (Metric and SAE), FHSS(Metric and SAE), BHCS (Metric and SAE), and SHSS(Metric only) types are working. Entries are in place for dowels and nuts, and you can select them, but nothing will happen. Not even a message saying so. :wink: Requires WizoScript to run. The Zip has two files: Screw Selector.py : This is the script screw_data.xml : file containing screw data from the Unbrako catalog. This needs to be put into the Wizoscript install directory (usually C:\Program Files (x86)\WizoScript\) Over the next few days, I hope to get things back to the old v2 level, and clean up the GUI a bit. Enjoy!