They are key operated from the outside and lever handle operated from the inside. The latch automatically deadlocks on closing the door and the snib function (bolt hold back button) enables the latch to be held back.
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3.5'' Baby Monitor 0.3 Megapixel Camera With RGB Night Light Temperature Detection Voice Intercom Night Vision Security Monitors
Aliexpress UK
Its intuitive design allows for quick operation, giving you the freedom to secure your property without hassle. Internal Snib Button: Engage the deadlock for complete security or temporarily hold back the latch bolt for convenience.
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Magnetic Child Lock Children Protection Baby Safety Lock Drawer Latch Cabinet Door Lock Limiter Children Security Locks
Aliexpress UK
The Yale 40m Deadlocking High Security Night Latch in brushed chrome is a top-quality door lock made from brass. It comes with fixings supplied. Suitable for front doors, this universal mounting latch has a brushed chrome finish. The Yale brand ensures reliability and security for your home.
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Aluminum Alloy White/Gray Window Gate Security Pull Ring Spring Bounce Door Bolt Automatic Latch Lock Black Grey Window
Aliexpress UK
Case Size(mm): 129H x 77D Backset: 57mm Centres: 48mm Forend Size (mm): 180L x 25W Brass Forend Standard cylinder length is suitable for doors up to 48mm thick. For doors in excess of this thickness, order correct cylinder length accordingly. Latchbolt is easily reversed without opening the lockcase. Latchbolt is withdrawn by single oval profile cylinder from outside and lever handle inside. Door is automatically deadlocked when closed. Latch can be held in withdrawn position by operating a snib in the forend, with special key supplied. Can also be operated by key from either side using double cylinder.
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Stainless Steel Door Safety Guard Chain Security Bolt Locks Cabinet Latch DIY Home Tools
Aliexpress UK
ERA High Security BS3621 British Standard Nightlatch -extra key options. Polished Brass (Lock body and cylinder). Lock Colour Lock size Images are of the 40mm backset lock. Choose the number of keys you require from the drop down options.
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Children Protection Baby Safety Lock Magnetic Child Lock Drawer Latch Cabinet Door Lock Limiter Children Security Locks
Aliexpress UK
1 x Yale, Deadlocking Nightlqtch, high security, 40mm, brass finish. Brand New
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Mechanical Password Locks Door Security Slide Latch Lock for Small Doors Cabinets Barn Door Bathroom Outdoor Garage Garden
Aliexpress UK
Traditional high security Yale Nightlatch approved to British Standard BS 8621:2007 and Police Secure by Design. Internal nightlatch handle can be locked from the inside with a key, ideal for use with wooden doors with glazed panels.
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Magnetic Child Safety Lock Limiter Children Protection Baby Safety Lock Invisible Lock Kids Security Drawer Latch Cabinet Door
Aliexpress UK
Latch bolt automatically deadlocks when door is shut - prevents credit card attack. Bolt can be held in the withdrawn position (only) with the use of the snib feature.
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Children Window Lock Inner Window Limiter Latch Position Stopper Home Security Door Windows Sash Lock Baby Safety Protection
Aliexpress UK