BTW I bought the Luna stand, and it worked great.. until the tab broke. They don't sell just the tabs, and in fact they don't sell the peg leg anymore.
I don't think Corki is an OEM or actually manufactures anything, they just sell the same thing that 100 other companies do. More to the point, the link above seemed to be for QuickRelease, not ThruAxel, as are 95% of similar items you'll find online.
I was able to find the same thing on AliExpress, with 12.4mm thru Axel.
Smarter Shopping, Better Living! Aliexpress.com
www.aliexpress.com
This arrived, and worked fine for about 6 months, until it broke. (I bought the non-folding steel one with the 12.4 tab)
The reason it breaks is not strictly due to strength, but stress. Sometimes you will be on flat terrain, and sometimes it will be at an angle, so you need a steeper or flatter angle. You can adjust the stand angle by bending the tab, but it can only bend so many times until it breaks.
This means buying a new stand every time.
(The steel stand that comes with this link above was plenty strong for my 26kg ebike - but if it's relatively vertical, I suppose it isn't actually supporting much of that weight anyway). The Luna stand is even heavier duty, but I haven't tried to use the Corki tabs with the Luna stand.
A US company called Upstand sells a similar product (and claim to be the original..), and they DO sell tabs separately, including thru axel ones - but I have ordered and emailed several times, with never a proper reply or anything arriving - so after 2 or 3 times, I give up on them. It shouldn't be so difficult to order something. (At least I don't think they charged my credit card).
Still. other than the need to replace the tab every 6 months or so, the solution works well, so I am in the process of negotiating with the seller at the link above to buy a few dozen tabs only.
I also sometimes use the Topeak FAT stand, but It is harder to balance, and I have managed to break one already. (I wish they had an all metal version).