The Language of Locks

ACCESSORIES - The term used to describe products usually in addition to basic security that help to upgrade your home security.

BATHROOM DOOR LOCK - A type of Mortice lock featuring a thumbturn facility which is used to lock the door from inside.

DEADLOCK - A key operated Mortice lock that “deadlocks” when operated. It does not have a handle or latch.

DOOR CHAIN - Allows the door only to be part-opened to see who is there.

DOOR SECURITY BOLT - A bolt fitted into the door which can only be opened from one side with a splined key.

DOOR VIEWER - Or “spy hole”, lets you see who’s at the door without opening it.

DOUBLE LOCKING NIGHTLATCH - Offers additional security than a standard Nightlatch as the main lock to it automatically deadlocks. Provides high security, particularly for doors with glass panels.

DUAL SCREWS - Suitable for most sash and sliding windows.

LEVER - Levers are used in Mortice locks. The more levers, the higher standard of security provided.

MORTICE LOCK - Recommended for all external doors, particularly 5 Lever British Standard which offers high security.

NIGHTLATCH - Suitable for front and back doors, featuring a latch that holds the door shut.

REPLACEMENT CYLINDER - Simply replaces the centre lock section of a Nightlatch. An easy way to “change to locks”.

RIMLOCK - This is fitted to the surface of a door - often used on shed and garage doors and older/cottage style doors.

SASH JAMMER - The ideal lock to secure most PVCU casement and transom windows.

SASHLOCK - A “deadlock” with the addition of a latch mechanism, used with a handle.

SNAPLOCK - Another good security option for wooden casement, transom and pivot windows. It automatically “snaps” locked when the window is closed.

SNIB - A button on a Nightlatch that is used to hold the latch back.

SPLINED KEY - A standard key with grooves in it, used with door security bolts.

STAYLOCKS - Designed to fit through the holes on a casement window catch.

SWING LOCK - Ideal for most wooden casement, transom and pivot windows.

THUMBTURN - A small knob used to operate a bolt.

TUBULAR LATCH - Used with handles and knobs on internal doors.

WINDOW LOCKS - Locks specifically designed to secure a wide range of windows.