This traditional door lock has been designed to replace most existing front door locks, providing added security to new exterior and interior doors.
The lock is suitable for left or right handed operation, inward or outward opening doors. A simple snib button deadlocks the latch from the inside.
The Traditional Door Lock is available in brass plated or traditional green finish, and has a choice of brass or satin finish cylinders, supplied with two cut keys. Backset Measurement is edge of door to centre of keyhole.

All with 2 keys these cylinders are generally interchangeable between different makes of locks.

This is the more modern version of the traditional nightlatches featured at the top of this page, with the added feature of a double locking mechanism. The double locking operates by putting the key in the outside cylinder upon exit and turning in the reverse direction. This will double lock the handle on the inside stopping a thief breaking the glass and letting themselves into the property. Careful consideration should be given when fitting to give the building occupants clear instructions in use, as it is possible to lock someone within the property if the handle is double-locked with an occupant still inside. Not therefore recommended on single entry / exit door dwellings: Use item 'A' in these situations. Backset is measured from the edge of the door to the centre of the keyhole.

These nightlatches have an increased specification to achieve BS3621 without the need to fit a separate deadlock. Consideration should be given as this lock gives only one secure point on the door whereas a separate deadlock gives 2. Backset is measured from the edge of the door to the centre of the keyhole.

The Ingersol SC71 is designed as a high security lock for solid doors, commonly used on city apartments. The key mechanism is 10 lever so virtually unpickable as well as being cut double sided on a security key that is only available at the very largest key centres.
Can be double locked on exit although you must never do this when occupants are still inside (unless there is another means of escape) as they will be locked in.
The bolt is a deadbolt and can therefore not be forced with a credit card or plastic, its also reinforced to resist hacksaw attack.

BS High Security Nightlatch
The British Standard High Security Nightlatch compiles with BS3621:2004 and falls in line with the new European Standard (BS EN 12209).
This 40mm product is ideally suited to glass panelled wooden doors. ItÆs designed with an internal lockable handle, offering added security against forced entry.
Operation is by key from the outside and by handle from the inside.
• Conforms to BS EN 3621:2004 (BS EN 12209)
• Recommended by insurance companies and the police
• Secured by Design accreditation
• Deadlock facility prevents intruders gaining entry using a credit card
• External Cylinder is protected from drilling and conforms to BS EN 1303 therefore providing added security
• The bolt can be held in the withdrawn position (using the snib) or in the thrown position (by using the key in the handle)
• Cylinder has in excess of 30,000 key variations
• 0mm Bolt throw activated by the snib when door is in the closed position.
• 10 Year Guarantee

These unique deadlocking nightlatches have been designed with a disability friendly internal lever handle. The range is available in 60mm and 40mm backsets and are ideally suited to timber glass panelled doors.

Roller bolt nightlatches are used on apartment doors where door closers are fitted. The function of the rollerbolt means that if the closer shuts the door when the occupant is on the wrong side of the door they are not locked out. To lock the nightlatch turn the key on the outside or turn the latch on the inside. These nightlatches have also been designed with a disability friendly internal handle.

Escape lever and outside pad.

Made to suit 3K70 Chubb security sashlock

The bolt slams locked like a traditional night latch and is withdrawn by the key outside of the handle inside.
The bolt may be held in the locked or in the withdrawn position by operating the sliding inside snib.

The roller bolt variant operates with a simple push / pull action.
The roller bolt can be locked shut or withdrawn by the key outside and handle inside: Importantly the user needs to do something to lock the door from either side.