That screw would sure be vulnerable to working loose as the latch is used and released no matter which way it's threaded. I'm wondering if some other piece locks it. Is there any chance it's in a through-hole and has been upset by a punch on the other side to keep it from being removed?
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Patron Member