Failed part lab testing? Access to a Subaru engineer? I must hang in the wrong circles.
Even Dorman's cheap
aftermarket replacement stud specifically for our cars shows grade 10.9 on the head.
I'd be interested in hearing the science on what they found in the OE stud. I've heard of Subarus having these problems for years, but not so much on Nissans using 12x1.25 studs. I figured a finite number of subcontractors churned out the OE stuff.