Dumb Question

Stacy E. Apelt - Bladesmith

Stacy E. Apelt - Bladesmith

ilmarinen - MODERATOR
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Knifemaker / Craftsman / Service Provider
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I can't remember what a part is called.

It is the black "T-nut" shaped inserts you press ( or screw) into a counterbored hole in aluminum. Like the ones Travis Wertz uses on his tool arms and fixtures. For the life of me I can't pull that name out of my head. The only thing I come up with is "top hat".

Y0u can see the inserts on the flat platen arms in this photo:
IMG_0372.jpg
 
Last edited:
Stacy E. Apelt - Bladesmith said:
I can't remember what a part is called.

It is the black "T-nut" shaped inserts you press ( or screw) into a counterbored hole in aluminum. Like the ones Travis Wertz uses on his tool arms and fixtures. For the life of me I can't pull that name out of my head. The only thing I come up with is "top hat".

Y0u can see the inserts on the flat platen arms in this photo:
IMG_0372.jpg
Click to expand...
I think you're looking for a "Rivet Nut"...Most industrial supply houses carry them..Grainger etc.,

https://en.wikipedia.org/wiki/Rivet_nut
 
On my TW-90, those black inset fasteners are flat-head bolts. The hole is countersunk, not counterbored.
 
Thanks Jim,
STEEL PRESS FIT NUTS - aka Captive Nuts ( hat...cap, that was where I was going)
95117a466p1-light-b01-digitals.png

https://www.mcmaster.com/threaded-inserts

Socket nuts will also work for pressing in aluminum:
90372a332p1-b01s.png

https://www.mcmaster.com/threaded-inserts

You can put either of them in aluminum jigs by drilling a seat and pressing them in so they are flush.

Patrick, Thanks, I now see that image didn't show what I was asking about, but the look was similar.
This is what the picture had:
91253a540c1-b01-digitals.png
 
in my long life i have found that there are no dumb questions only sometimes dumb answers
 
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