I stand by my suggestion to use the existing 'wallowed-out' holes with a next-size, or larger screw, I prefer the lag bolts because you can use a socket on the heads. I back this up by 40 years of repairing similar situations in my business in Restraint repairs, and as a machinist.
Funny how excited we all get over a few loose screws, might be a few nuts in the crowd.. at least one: Me
