Drop-in T-Nutz for bed rails

I am having a major brain freeze and tried searching to no avail. I am trying to find a source for "drop in" t-nuts for the Tacom bed rails like the ones in the link below. All I can find are the ones that need to slide in from the ends. I now have a bed topper on my truck and I can't slide things around where ever I want.

Thanks in advance!

https://www.tacomaworld.com/threads/drop-in-t-nuts.538865/

 

These work great for me.

https://hondogarage.com/products/toyota-utility-track-t-nut-4-pack

 

Perfect, exactly what I was looking for. Thanks.