oops, did I say never? Sorry, I meant never. As far as doubt, when I decide the fastener is still in good condition and it takes the torque and I use a new lock washer if it's "sprung", there is no doubt. I got shoes older than these trucks.
"I use 3 different grades of stainless depending on the strength needed", WOW! that is OCD!, but I call it CDO because it needs to be in alphabetical order for me.