Mortise locks are installed into a rectangular pocket cut out of the edge of a door. The term mortise refers to a hole or recess cut that allows the lock to be inserted. Mortise lock bodies look much different than cylindrical locks and allow for more working mechanics inside.
1. Knob Locks. Knob locks are the most common type of door lock available and the chief security method for most doors.
The standard Kwikset deadbolt is the most common lock in America.
Mechanical locks come in four types themselves; cylinder, spring bolt, mortise, and deadbolt. A mortise lock is the typical type of lock that you find. It requires a pocket to be drilled into the door and while it provides decent security, this type of lock is hard to install.
There are two main types of mortice locks- sashlocks and deadlocks. Each operates in a different fashion. A sashlock includes a latch, which is operated with some form of key, and a bolt. These locks tend to be installed on back doors.
Mortise locks were typically used before 1950, and tubular locks after 1950. Read on for a quick explanation on the differences between these two types of door locks.
Mortise Locks
There are many different types of mortice cylinder locks, including three lever mortice locks and five lever mortice locks. The number of levers in a mortise lock tells how many points the door locks into the frame. The more levers it has, the more secure it will be.
Are mortise door locks universal? Yes, a mortise lock set and mortise door lock is universal and can easily be used to replace most other lock sets, especially on an older door.
It's a difficult game, and most pro locksmiths will drill a curtain mortice lock (drilling can be done in such a way the lock can be reused) but as far as picking goes, it's an incredible skill that will give you an incredible buzz.
5 lever locks are also generally sold in two sizes: 2.5 inch and 3 inch case sizes. These translate to 44mm and 57mm backset measurements. When choosing the right size for your external door, you will need to consider these factors: The thickness of your door.
Now available in sizes 1/8" - 1/2" by 1/16". It is perfectly acceptable to just have one mortise chisel ( 1/4" or 3/8" being the most common) and size all your mortises accordingly. With rare exception, mortise strength is determined by total glue surface, not width of the tenon.
Types of mortises and tenons
Haunched mortise. Open mortise. Stub mortise.
The lock body of a mortise cylinder is its greatest defining characteristic. The name mortise refers to a hole, or recess, which is designed to fit a corresponding piece. In the case of a mortise lock, this hole is cut into the side of the door to fit the mortise lock body.
- Select Finish: Brass (03), Satin Chrome (26D), or Duronodic (46). - Special Ordering: See below for Special Order information (i.e., ordering cylinders keyed to existing key number). - Delivery: The Ilco 7165-KW1 Kwikset Mortise Cylinder is in stock and available to ship.
Mortise lock cutouts may weaken the structure of the door– yet mortise locks are mysteriously stronger than bored cylindrical locks! They give more leverage and last longer than cylindrical locks, and their versatility allows more architectural conformity to existing security hardware.
Schlage offers multiple functions and a wide selection of finishes and designs in electrified mortise, mortise multi-point and cylindrical locks.
What is the difference between a 3 lever and 5 lever lock? The difference between a 3 lever lock and a 5 lever lock is that a 3 lever lock is less secure because it has fewer levers which increases the risk of key duplication. Also, a 3 lever lock will NOT be BS3621 approved due to the poor security of the lock.
Standard Yale and Yale Type Locks (Latch Locks)
These are most commonly surface mounted on the door, in contrast to mortice locks (see below) which are set into the door in a mortice - hence the name. As with Hoover and vacuum cleaners, the manufacturer Yale has become synonymous with this type of lock.
It's important to remember that 5 lever mortice deadlocks won't be found on uPVC, aluminium or composite doors. It locks and unlocks from the inside and outside with a key. The words '5 Lever' should be engraved on the internal faceplate of the lock.
One of the most common (and easiest to pick) locks is the pin-and-tumbler, which is a type of cylinder lock. Cylinder locks are used in most deadbolts. When picking a pin-and-tumbler lock, put the tension wrench in the keyhole and turn it as if it was a key.
A closed shackle padlock is designed to have the minimum amount of shackle exposed; which means that if a criminal wants to saw it off, they will have a hard time doing so! This type of a shackle typically has a higher security rating compared to an open or semi enclosed shackle.
Both mortise and mortice are acceptable spellings of the same word in the UK and US. The term is based on the concept of carving out a space to form a strong link between the two pieces.