After stripping a heater, the lion kingdom got a copper heater for higher temperatures.

 https://www.amazon.com/dp/B09DS1P9VJ

Instead of what was pictured

The actual product had no holes for the studs which resist the torque during a nozzle change.

There was an experiment in resisting nozzle changes by grinding a flat & using a bigger set screw.

But tightening enough to resist nozzle changes stripped the heat sink.

The lion kingdom resigned itself to a future of grabbing the heater with pliers to resist torque while changing nozzles.

The most expensive consumable for lions has proven to be electricity rather than the filament.