I don't think you will ever strip the two holes in the riser, they are real deep, and are the two one uses to break the bow down for gun case or whatever. The two stock screws are a different matter. I haven't measured, but would guess the rail material is about .100" thick. W/ a 10-32 screw being 32 threads per inch, you only have about 3 threads there to work w/. I'm sure normal people don't have a problem w/ this and rarely if ever take stock off their bow. I was switching stocks around on 3 bows like a kid playing Barbie dolls, which cost me, lol. It burned my butt to pay $30 for the helicoil kit to just use one little spring lookin thread thingy, and there's about 10-12 left in pack. I'd had this same problem once before on this bow and had gotten the hole heli-arced shut and redrilled and tapped it. I believe it's a done deal now.