What is a deadbolt?
A deadbolt is a lock whose bolt moves only when you turn the key or thumb-turn. Unlike a spring latch, it cannot be pushed back with a card or knife, which makes it much harder to force.
Single or double cylinder
A single cylinder deadbolt has a key outside and a thumb-turn inside, which makes it easy to leave in an emergency. A double cylinder needs a key on both sides, which can help on doors with glass panels but slows your exit in a fire. Check local fire rules before choosing double cylinder locks.
What makes a deadbolt strong
- A bolt that extends a full inch into the frame
- A reinforced strike plate
- Long screws that reach the wall stud, not just the door jamb
- A quality cylinder that resists picking and bumping
Simple upgrades
Replacing short strike screws with longer ones is one of the least costly improvements you can make. For older doors, a new deadbolt keyed to your other locks adds security without adding another key.
Getting one fitted
Our residential locksmiths install and repair deadbolts across Van Nuys.
Need help now? Call 818-737-2241 or request a callback.
