Sizing spiral locks

Spirolox have been .990" for Mopar small block pistons. I'm pretty sure thickness has been .042" or .044" with some manufacturers using 2 per piston and some 4 per piston. But the original manufacturer is the best place to get them from. Always hated trying to take the old ones out.
FOUR per piston??? Dang, I'd have to invent a whole list of new cuss words for that set of pistons.