The warning on page 2 does present the limitations of this design:

"We do not recommend using the Angled Half Nut in applications involving safety.
It is designed for easy install and remove but does not have the strength of a full
nut. In a single test, a 3/8-16 Angled Half Nut machined into 1" thick 6061 failed
at a torque of 225 inch pounds. A 3/8-16 regular tapped hole in the same material
failed at 400 inch pounds."

Rick