Install

Pure NX Open for Python: nothing to compile, no licence beyond NX Join and Check-Mate. Verified on NX 2606.5001.

Download checker 1.0.2

As a Check-Mate test

1. Unzip. Put the diacheck folder somewhere NX can read, for example D:\nx_custom\diacheck. It holds an application folder with NXCheckers.json and four Python files.
2. Point NX at it: set UGII_USER_DIR=D:\nx_custom\diacheck before NX starts, or add that folder to the custom_dirs.dat your site already uses.
3. Start NX and open the assembly. In Analysis › Check-Mate › Set Up Tests the test is under Join › Point Join › Fastener Hardware Diameter.
4. Customize it if your hardware lives in an XML database (below), then run it. Failing fasteners are listed against their FAS object; the full table goes to the listing window.

Without Check-Mate

With the assembly open, File › Execute › NX Open (Alt+F8) and choose run_diacheck.py. Same code, same table, plus a JSON report beside the part.

run_journal.exe run_diacheck.py -args D:\path\asm.prt D:\path\report.json
run_journal.exe ExecuteChecker.py -args D:\path\asm.prt D:\logs   (through Check-Mate, batch)

Telling it where your hardware library is

NX Join stores only the names of a fastener’s hardware. The checker reads the diameters from the same library the Join dialog reads: the Hardware.xlsx in the folder of each hardware part (found automatically), and Join XML databases, which you list in Hardware XML Databases. The diameter column is Diameter<Double:Length:in> (or mm); the type column is Type or Hardware Type.