Agree with JMR,
The rings are really not an issue, but the screws are a bit soft. I have been careful with my torque wrench settings.
I have it written down somewhere on my bench what my final torque values were before I trashed a couple. It was really no big deal, but I do recall that I went to Tacoma Screw to see if they carried a similar TPI screw, which the local store did not at the time.
Now I can't recall if I ordered extras or not.. What do they say is the first thing to go?....