What is this nut called?

[Dan Friedrichs]

As the title says...what is this nut thing called? Goes in a T-slot.

(Trying to attach something to a T-slot on my Hammer sliding table saw, but can't devise a way to do it without one of these. I'm sure Felder would sell me one...but I suspect the cost and wait would be enormous. Can't find a square-head bolt or carriage bolt that would fit the dimensions of the slot.)

[bill kaminski]

flat nut..sounds too easy I know..pretty sure

[Ken Fitzgerald]

T-slot nut or channel nut?

https://www.mcmaster.com/#machine-table-t-slot-nuts/=1576rqb

or https://www.mcmaster.com/#strut-channel-nuts/=1576si3

[Jim Becker]

Dan...mill some oak or other hardwood so it fits in the slot and then just drill and press threaded inserts in the bottom side. :) That's how I've handled this with my MiniMax slider. ;)

[Arthur Fleming]

They make a channel called kindorf, and/or unistrut, some of the flat nuts they use to bolt pipes ect to it, look very similar to your picture. You might be able to buy them (if in fact they are the same animal) at an electrical supply house.

[pat warner]

A nut plate.

[David L Morse]

I do like Jim has suggested. The carriage bolt can be replaced with a tee nut.
348255

[Dan Friedrichs]

Duh. Apparently I was so enamored with the Austrian engineering that I failed to think of such a plebeian solution as wood :)

Thanks for all the suggestions. I was looking at the ones Ken suggested from McMaster, but they're pricey, and I was just really surprised I couldn't find something similar from McMaster.

[Ken Fitzgerald]

Dan.... weld nuts? https://www.fastenal.com/products/fasteners/nuts/weld-nuts?r=~|categoryl1:"600000 Fasteners"|~ ~|categoryl2:"600072 Nuts"|~ ~|categoryl3:"600123 Weld Nuts"|~

[Dan Friedrichs]

Oooo...now that might be an option, too. Thanks, Ken!

[Bruce Page]

It looks similar to a Unistrut nut. Worth a look.
https://www.google.com/search?q=unistrut+nuts&biw=1280&bih=612&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwiy8qPCtMXQAhUU1mMKHenLAEwQ_AUIBygC&dpr=1

[Neil Gaskin]

Wouldn't be hard to make out of bar stock, drill bit, and tap.

[Ronald Blue]

Ken beat me to it but was going to suggest Fastenal if there is one close by. On the unistrut channel you can insert them anywhere and then turn and they catch the sides then as you tighten they pull up against the lip of the channel.

[Grant Wilkinson]

Lee Valley has these

http://www.leevalley.com/en/Hardware/page.aspx?p=65638&cat=3,43576,61994&ap=2

[Brad Shipton]

These are easy to make. A piece of aluminum, drill bit, and a tap. Steel works too.

[Ken Fitzgerald]

The ones Grant posts can often be picked up in a local Ace hardware as they are used in toilet seats IIRC.

[Dan Friedrichs]

The ones Grant posts can often be picked up in a local Ace hardware as they are used in toilet seats IIRC.

Now's there's an idea! I was just going to make some of the nut variety, but a bolt with wide head would work better...

[Jerome Stanek]

What about a carriage bolt

[Lee Schierer]

80/20 makes several styles of nuts similar to that.348304

[Brad Shipton]

I tried carriage bolts, but you can find if they rotate they will damage the aluminum slot.

[Keith Westfall]

Go down to the hardware store and get some toilet hold down bolts. They fit really well.

[Brian Lamb]

The nut the OP posted pics of is called a speed nut, usually narrow enough to slide into the slot from the top and then when twisted they engage either side of the t-slogt and you can clamp down.