I have been searching for blind nuts for a use I have that is outside model plane use, although I do build and fly RC planes. But for this use, I need t-nuts that are longer than what I've been seeing. At least 1/4 inch long would be nice. I really need to use 1/8 (#5) screws, but that search looks hopeless. So I can get by with 4-40, which seems to be 7/64 screw size. But all the blind tee nuts i've been seeing are short, maybe only 1/8 inch long. See link for example. Thank you.
The link I tried to post will not go through. It is a Du-Bro SKU: 135