1. Purpose

Cuts internal threads on pipe connectors for male-threaded fittings: valves, meters, equipment stubs. Use it when stub details must show the thread type on the issued sheets.

2. Quick video (≤ 2 minutes)

[Video in production — follow the steps below for now.]

3. Steps

Open a view showing the end fittings that need threads. [image 01: end fittings awaiting threads]
Click Internal thread in the VP_MEP tab, Plumbing panel.
When asked to pick a fitting, click each fitting that needs an internal thread (press Esc to finish). [image 02: picking a fitting]
The tool threads each picked fitting; verify the thread callout on the connectors. [image 03: connectors with internal threads]

4. Real-world example

A bathroom group has 6 DN20 stubs for angle valves, and the design calls for female threads. Click Internal thread, pick the 6 stub fittings — all threads land at once, no per-stub annotation by hand.

5. Common errors

Symptom	Fix
Picked items are rejected	Pick true fittings — straight pipes take no threads
Thread mismatches the real valve	Check each fitting's DN first — each DN gets its own thread
Esc pressed mid-way	Already-picked ends keep their result — continue with the rest

6. See also

Cap the pipe end — cap the stubs after threading.
Fix common pipe issues — re-check the runs after processing ends.