HOW TO BURGLAR-PROOF YOUR DOORS
The majority of devices mentioned in this report cost very little. All of them will help reduce burglary and make your house or apartment more secure.
Begin with a home "security" check. Start with the front door and work clockwise around the entire inside of your home, finishing with the back yard, fence and shrubs, gates and garage.
Shrubbery should never block the view of your front door. This allows an intruder the oppertunity of privacy to gain entrace.
A wide-angle viewer in the door lets you know your visitor in advance. This item is recommended over a chain lock.
LOCKS, BOLTS AND HINDGES
A "Dead-latch" is an inexpensive lock set which keeps the burglar from simply slipping your door open with a plastic credit card. This method of entry is common in many areas, but very easy to prevent.
"Auxiliary Deadlock:" 1" deadbolt, single cylinder with hardened cylinder guard, and thumb turn.
For extra security, a single cylinder deadbolt lock, with one inch throw and case hardened insert, is recommended for all exterior doors. If you have easily breakable glass within 40 inches of a deadbolt lock, it should be augmented with a stronger type of glass or plastic to provide adequate security. You can also install a double-cylinder deadbolt (a lock with a keyway on both sides of the door) in order to keep a theif from unlocking your door. There is a drawback with this, although you are adding additional security it is at the expense of personal safety (with a double cylinder deadbolt). For example, yo could lock yourself in and not be able to escape in case of fire or other emergency. We would suggest that if you have a double-cylinder deadbolt installed that you keep an emergency key in a closet where everybody in the household knows about.
The "Rim Lock" is a 1" deadbolt lock which is installed on the inside surface of the door. It is less expensive than other types of locks, but equally effective for security.
The "Jimmy-Proof Rim Lock" is another lock which is installed on the inside surface of the door. But this lock has vertical dead bolts, which is an approved device.
"Cane bolts": 1/2" in diameter by 12" high installed at the top and bottom of the inactive door offers minimum security. Many homes with pair of doors, use half-barrel slidebolts on the inactive door. These are weak and totally inadequate.
"Flush Bolts": installed at the top and bottom of the inactive door or pair of doors, flush bolts offer additional security, since the intruder cannot get at these devices to tamper with them if the doors are locked.
Some exterior doors are improperly installed so that the hinges are installed from outside. To protect such a door from being lifted from its hinges by pulling the hinge pin, follow these simple steps:
1. Remove two screws, opposite each other, from both leaves of the hinge plate.
2. Insert screw or concrete nail into jamb leaf, protruding 1/2".
3. Drill out the opposing screw hole in the door. Do this in the top and bottom hinge of the door. When closed, the hinge pins may be removed, but the door will remain firmly in place.