I could not pull it out with my hands after tapping it in. But to be clear, there’s only a sheer force to deal with, and it’s light.
I cut a bicycle axle bolt in half, and embedded it in the brick so there is a bicycle sprocket on the wall. Then a chain wraps another sprocket, which turns a shaft that goes all the way though the wall to the other side, where it connects to a right-angle gearbox, which attaches to a water valve. It’s lightweight overall… just the weight of a sprocket, chain, and a small decorative wood thing out of wood to serve as a handle.
This might come a bit too late but why didn’t you just get threaded rod and use one of these instead?
I did not know anchors like that existed for machine bolts. That’s good to know! However, it would not have helped in this situation. The bicycle axle has non-standard threading (~9mm bolt with a thread pitch that’s 2 steps away from the norm). Since it had a special nut that interfaced to ball bearings, I could not bring in a standard bolt or threaded rod. And the threaded portion of the axle was short enough that no threads could have gone into the wall. I could have added threads to the bare portion, but my die set skips the ø=9mm size.
I was asking more for future reference – whether or not I should ever repeat this. And I think you answered that. Even if I get lucky in the future on getting a perfect fit at that moment, temp changes could blow it. I guess I’ll assume anchors (chemical and mechanical) are designed to handle the temp changes.