PXIe-8301 Thunderbolt 3 thread pitch.

[ETTech]

What is the thread pitch/screw size for the holes next to the Thunderbolt 3 ports on the card?  Are there any readily available retaining clips that are compatible?  Thunderbolt 3 is great but in a busy production environment it's easily disconnected or damaged with a bump or tug.  I think the larger one is 4-40 but not sure about the smaller hole.

[santo_13]

I think you need to get this cable retainer - I would assume these are compatible as Thunderbolt cables are fairly industry standard.

https://www.sonnettech.com/product/thunderlok3.html 

[ETTech]

Santo_13,

Thank you but unfortunately the screw for the Sonnet is a 4-40.  The screw hole on the side is smaller.  I've looked through various manuals and forums but have not found a single mention of the specs or any hardware made for this.  There has to be something, thank you again.

[santo_13]

Well, that is rather surprising, there is no trace of documentation of that screw.

You will get an answer if you contact NI Support

[Robert__R · Accepted solution]

That's an M2 nut above each connector. The holes at either side are 4-40

- Robert

[ETTech]

Thank you!