long wheel studs for factory discs

You don't need long wheel studs, you need deeper lug nuts. Those wheels work with stock lugs with the correct lug nut. The lug nuts should be inserted in & be about 1/8" to 1/4" from the backside of the wheel.

Should be 1 3/8" like these.

https://m.summitracing.com/parts/cll-l5122