Oh. It's an older house. The studs themselves may be strong enough to snap a screw. I lived in a house built in the 40s that had nut wood floor joists (hickory, we think) that you couldn't drive a screw or hammer a nail into without a pilot hole they were so hard.
If you drill a pilot hole later, coat over the spot with some vaseline before drilling, then wipe it off. That will keep lead dust or asbestos dust from getting into the air. I mean, short of calling an abatement contractor, your options are limited. It's airborne dust that is the problem.
But perhaps I shouldn't be giving you that advice (though it worked fine for me - and my kids are really bright, so no discernable lead damage).
Don't sue me.
Well, it's not my house and there's lead paint, so every flake of drywall that comes off cause my wife to (possibly justifiably) freak out