Here are the measurements I used for them:Īcross the Flats of the Tee: 0.480' / 12.17mm I am sure the slots were made to metric numbers. I have made some 6mm Tee nuts for a machine that I am not able to discuss here (starts with the letter after T). So, since the nut table had no data for that size, I did the next best thing and gave you the data for the bolts. Perhaps the author of the original standard did not think that size was used very much. But, as I said in my previous post, that table was blank for the 1/4' / 6mm size. I quoted from the one for the slots and then skipped down to the one for the nuts. MH had three tables, one for the slots, one for the bolts, and one for the nuts. Those two facts are why I say that it seems to be a non standard standard. It was easier to buy them than to alter the ones that were provided. I had to purchase extra Tee nuts for my 1/2' clamping set because the 'standard' ones would not fit the slots on my mill.

I know that Enco lists quite a number of Tee nuts, many of them differ in only minor ways, but they are apparently necessary.

I guess the nut would be similar to the bolt. The nut size table starts with the 0.312' / 8mm size. Strangely, there are no numbers for the Tee nut itself, just the slot and bolt. That 'Width across corners' dimension is not referenced in the figure so I am not completely sure what it is. There are some more numbers for rounding or breaking the corners.Īcross the flats of the Tee: 0.469' - 0.438' / 13mm - 12mm Height of bottom of the slot: 0.203' - 0.234' / 7mm - 8mm I looked in Edition 36 of MH and it says it is the 1985 standard, revised in 1988.įor 1/4' / 6mm size Tee slot it gives the following.

Milling machine t slot sizer