09-01-2013, 10:08 AM
Locktite was the first thing I thought of.
If the screw will tighten, then Locktite will keep it from vibrating loose.
Generally, the Locktite Blue would be used where you need to remove the screws at some later date. Locktite Red is used when you want the screw permanently locked. Since the hole is a little mangled, Red might be the way to go, but there's the chance the screws won't loosen when you need to replace the lock.
I'd start with that Blue.
If the screw will tighten, then Locktite will keep it from vibrating loose.
Generally, the Locktite Blue would be used where you need to remove the screws at some later date. Locktite Red is used when you want the screw permanently locked. Since the hole is a little mangled, Red might be the way to go, but there's the chance the screws won't loosen when you need to replace the lock.
I'd start with that Blue.