If the lock is a single-cylinder deadbolt and the knob inside the door is accessible turning the knob opens the lock. If the lock is a double-cylinder lock or the inside of the door is not accessible, special lock picking tools are necessary. If the deadbolt is not fully locked into position, pressing a credit card or other flat tool into the space left by the partially opened deadbolt allows it to open. Completely locked deadbolts require special lock picking tools to open.Know More
Common lock picking tools include metal picks and a tension wrench. While picks are specialized tools, a flathead screwdriver can be used as a tension wrench because they are readily available. Common metal objects such as paper clips can be bent into picks for a specific type of lock. Some locksmiths use electric pick guns instead of a traditional pick and tension wrench. A pick gun has several different pick-shaped tips, which vibrate to push the pins of the deadbolt lock up.
While there are many legitimate reasons to pick a lock, possessing or using lock-picking tools without a license is illegal in some jurisdictions. In California, for example, it is a misdemeanor to possess a lock pick without a locksmith's license. Always check local laws, and call a licensed and bonded locksmith if there is any doubt.Learn more about Doors, Windows, & Locks
On all keyed doors with cylinders, whether on residences or automobiles, the cylinders can be replaced. The size and shape of some brands may vary, with some models being interchangeable, but generally the replacement procedures are similar.Full Answer >
To install a key lock on a sliding glass door, drill two mounting holes, fasten the lock onto the door with screws, and drill the lock bolt hole. Test the lock with a key.Full Answer >
To replace a lock cylinder, remove the knob, push the cylinder from behind to remove the retaining ring and cylinder housing, use retainer ring tool to remove the retainer ring, remove the cylinder plug, and replace the plug. Replace the pins in the plug to rekey the lock.Full Answer >
To fix a deadbolt lock, realign the latch with the strike plate by tightening any loose hinge screws and the screws holding the lock to the door, grind the keeper to increase its size, and lubricate the lock. If necessary, grind the deadbolt's bolt to reduce its size.Full Answer >