LOL yep would take a lot of heat to brake down one of those.
There used in shafts as retainers for moving parts in the auto industry as well as many other individuates.
There made to resist warping at high heat as to allow movement in a harsh environment.
I have seen them as small as 1/32 and as large as 12 inches in diameter.
In less they developed a special alloy just for this allocation I would bet this is a standard Clip Washer
Just my 2c nothing more
There used in shafts as retainers for moving parts in the auto industry as well as many other individuates.
There made to resist warping at high heat as to allow movement in a harsh environment.
I have seen them as small as 1/32 and as large as 12 inches in diameter.
In less they developed a special alloy just for this allocation I would bet this is a standard Clip Washer
Just my 2c nothing more
That's a very common fastener in the automotive world, I probably have several hundred of them out in the garage.
I wouldn't want to be around when it got hot enough to melt.