Since the PP is 1/8", how about 1/8" longer than stock? The stock set-up is 3 bolts and 2 studs. The bolts are 25 mm long. The studs - dunno. Maybe it doesn't matter if you only intend to change the bolts for studs.
BTW, you can overtighten a stud and nut combination too, so is it any better? Either way the threads can pull out...