I’ve had metal anchors in my walls that corroded over time. I’m not sure if corrosion causes expansion, but all those bricks split. That would be my only worry.
That’s good to know. I would hope a metal anchor to reshape when temp causes expansion. It’s a shame to hear it’s the brick that’s forced to expand. In my case it’s a solid metal rod, so it sounds like the metal is guaranteed to split the brick in a temp change.
It sounds like I have to pull out the shank, bore the hole to 10mm, and either use chemical anchor or fasten it using a sheet metal w/2 nuts.