Blank Tee Nuts.

[JasonBModerator @jasonb]

I shoul dprobably mention that my previous post won't apply to Myford badge Holders as theit tee slots are rather skinny and not much deeper than the little Emco's and probably why Myford go for tee bolts rather than nuts and studs.

[Michael GilliganParticipant @michaelgilligan61133]

Good call, Jason

But I would mention that, for the proposed M6 screws, Tee-Nuts are probably O.K.

MichaelG.

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As an aside: __ I also have some ‘necked’ Tee-Bolts to fit the Myford, with M10 threads

[JasonBModerator @jasonb]

Yes, proper tee shaped ones will be fine, just not 3mm flat bar.

Basically so long as the tee nut or flat bar thread engagement is more than the thickness of the hex nut being used at the top then that is where things will fail not at the bottom but you should not really be using that much force anyway.

[DMBParticipant @dmb]

My favourite method is to thread the stud about one pitch less than the thickness of the nut, grip plain shank in bench vice, wrench up tight, add drop loctite.

Quite agree with JasonB, should never use excessive force, no need. If in doubt about possible movement of the work, ensure, to start with, that table surface clean of any oil which could lubricate and if necessary, interpose a sheet of clean dry paper between the work and the table. Maybe also not attempt such hefty cuts that could induce movement.

[Mike PooleParticipant @mikepoole82104]

Posted by Michael Gilligan on 24/12/2021 21:07:35:

Posted by Clive B on 24/12/2021 20:49:19:

Rotagrip supply blank Tee nuts in various sizes at reasonable cost:-

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… and in an interesting range of sizes:

**LINK** : http://www.rotagriponline.com/datasheets/teenuts.pdf

It would be worth checking the slot dimensions quite carefully.

MichaelG.

It looks the conversation had moved on from the last post I read, must remember to refresh before posting

Mike

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Mike Poole on 25/12/2021 19:34:27:

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It looks the conversation had moved on from the last post I read, must remember to refresh before posting

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No harm done, Mike … at least we’re all singing from the same hymn carol sheet !

MichaelG.

[Neil LickfoldParticipant @neillickfold44316]

I use countersink screws on the bottom of a piece of flat bar, and use m4 nuts to stop it unscrewing. I make them with a couple of screws at a centre distance to suit what I am holding on the cnc router table. The idea does not work if the mill table only has limited room on the ends to insert a T nut or T stud. Studs are not always the best option at times, so a variety of clamping methods is often a good way of holding many different things. Sometimes another option is to have some sacrificial plates. They get secured to the table, and then they have what ever sized threaded holes on the location needed to hold what ever it is that needs to be fixed.

Like Tug said, it does not take very long to make a strip of T nut stock, and then cut off what ever length you need. Then you have all the options needed as well.

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