How are lock sizes measured?
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How are lock sizes measured?
Backset is measured from the centre of the keyhole to the edge of the lock. Most backsets are commonly measured at either 44mm (for a 64mm (2½”) lock) and 56mm (for a 76mm (3”) lock). Typically a lock adjacent to a glass panel will be 2½” (44mm) and otherwise 3” (56mm), but you should always measure to be sure.
What are lock sizes?
In the United States, there are two common backsets for residential door locks: 2 3/8 inches and 2 3/4 inches. Pack your locks with a 2-3/8-inch or 2-3/4-inch latch, depending on which backset you specify.
What is the backset on a lock?
The backset is the horizontal distance from the edge of a door to the centre of a lockset; thus, the distance a lockset is ‘set back’ from the edge of a door is called its backset. It’s usually 1 inches or 2 inches (or 44mm and 57mm).
Is a Yale lock BS3621?
The Yale British Standard PBS BS3621 Nightlatch Polished Chrome is one of the few insurance-rated nightlatches on the market. In addition to automatically deadlocking when the door is in the closed, the inside handle can be locked by a turn of the key.
What is the lock backset measurement?
How big is a door lock hole?
2 1/8″
The Bore hole is the large diameter hole where the door knob is mounted. The standard sized bore hole is 2 1/8″ in diameter. Through the edge of the door there is a 1″ cross bore that extends from the edge of the door through the bore hole. This cross bore is where the latch is installed.
What is lock without a key called?
Keypad Locks They can be battery-powered or mechanical and generally utilize deadbolt locks, knob locks or mortise locks for the actual locking mechanism. These door locks offer enhanced versatility and enable entry without a key, although many also contain keyholes for alternate unlocking mechanisms.
What is a 5 Lever Mortice Deadlock BS3621?
The Fortress 5 Lever British Standard (BS) Deadbolt Mortice Door Lock is a high security deadlock, conforming to the BS 3621:2007; meets the exacting demands of insurance companies and the Police. Higher security and strength are delivered by a 20mm bolt throw in every lock.