The Holes.txt and Pipethreads.txt files are ASCII text files that are used to populate thread size values on the Hole Options dialog box and the Thread Type box on the Thread command bar. You can use a text editor, such as Notepad, to add or edit values in these files. You can also print these files to make it easier to define the correct matching cylinder diameter for the thread size you want to use.
By default, the files are located in the C:\Program Files\Solid Edge ST6\Preferences folder. You can instruct Solid Edge to look for these files in a different folder, including a folder on another machine on the network. On the File Locations page on the Options dialog box, select the Hole Size File or Pipe Threads File entry, then click Modify. On the Browse dialog box, specify the drive and folder containing these files. After specifying the location, click Update.
Note:
If you edit the Holes.txt or Pipethreads.txt files, save a copy of these files before you uninstall Solid Edge.
There is a thread family column in the Holes.txt and Pipethreads.txt files, which organizes threaded features into families of threads that have similar characteristics. This allows you to change the nominal diameter of a threaded feature and then have the appropriately sized thread characteristics automatically applied. For English threads, family names for UNC, UNF, and UNEF have been defined in the Holes.txt file.
You can also define new thread families for your company. Each family can only have one entry for each diameter. For example, for the UNC Family, you cannot have two entries with the same nominal diameter or internal diameter.