What should I do if the safety bolt of the security door falls off?

Take a large or high magnetic magnet and suck the iron rod inside, that is, the lock pin, if you can suck it into the keyhole, you can get it, if not, change the door decisively, and the next time you will know, when you remove the lock, you must tie a rope or wire when you take off the pin.

Hello, professional answers for you, the safety bolt of the anti-theft door is removed from the kind of automatic anti-lock (automatic bolt after the door is closed), and other locks that need to be manually locked are normal and will not come out! But there are two possibilities that the bolt will come out on its own, one is: a paranormal event occurs (I don't believe it), and the other is: >>>More

All public areas belong to property management, if the ceiling falls down if the owner presses the security door, it can be borne by the owner, and if the natural support falls, the property can be repaired.

There is no security door in the world that cannot be pried open, as long as the door is called, it can be pried open. The so-called anti-theft door is just a door to block the gentleman, not the villain. So, even if you screw that knob on, you can't be safely pried open. >>>More

It is the anti-theft door deadbolt that can't be bounced out of the handle to see first, and the lock spirit alone is not flexible, if not, put some oil on the deadbolt. If you can't do it again, you can change the lock body.