The cleat for our Ram bed rails is
similar to the t-nut that works in the Toyota rails but not the same. I also added pictures of the Ram cleat and part number, although I can’t find any Mopar suppliers that carry this part. The Amazon picture shows the Toyota t-nut dimensions. I purchased some Toyota t-nuts to compare.
Cleat dimension comparison and notes:
- Ram overall height is slightly less than 5/8” from bottom of cleat to bottom of upper flange. THIS IS THE IMPORTANT DIFFERENCE-accessories do not tighten with the Toyota t-nut...need about 1/16" to 1/8" shorter overall height for it to secure.
- Width 7/8” at base, but up to 1" width at base would likely fit.
- Slot width 9/16”
- By eyeballing it, looks like a 3/8” t-bolt inside the Ram cleat.
Therefore, the Toyota t-nuts will not work unless you can shave about 1/8" off of the overall height.
My conclusions are consistent with this post
here for the M12 (metric) t-nut.