Latch bolt automatically deadlocks when door is shut - prevents credit card attack.
eBay
Window Hook Latches Adjustable Suspended Window Strut Limiter Hotel Office Building High Rise Children's Safety Lock Protector
Aliexpress UK
The Yale BS1 Standard Nightlatch is a high-security door lock with a metallic polished brass finish. This ANSI Grade 1 rated nightlatch is easy to install and comes with all the necessary hardware, instructions, and key included. Suitable for the entire door, this universal mounting nightlatch from Yale is a reliable choice for securing your home.
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6 Set Stainless Steel Tension Lock Cap Lock Cabinet Boxes Spring Loaded Latch Catch Toggle Hasp Sliding Tool Part High Quality
Aliexpress UK
Yale B-85-CH-CH-40 Deadlocking Nightlatch, 40 mm, Chrome Finish, High Security with Automatic Deadlock
eBay
No-Drill Sliding Door Lock, Child Safety Lock for Sliding Windows, High-Rise Anti-Fall Limiter, Anti-Theft Safety Latch
Aliexpress UK
Outdoor High Security Nightlatch. Enhance the safety of your property with our Outdoor High Security Nightlatch, designed for peace of mind and effortless convenience. Why Choose Our High Security Nightlatch?.
eBay
No-Drill Sliding Door Lock, Child Safety Lock for Sliding Windows, High-Rise Anti-Fall Limiter, Anti-Theft Safety Latch
Aliexpress UK
The Yale P85 & P89 are deadlocking nightlatches suitable for left & right handed, and inward opening doors with a thickness of up to 57mm. Bump resistant cylinders. 2 keys included. Deadlocked by the snib button internally, making the lock inoperable by key or handle.
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Small mini High Quality Strong Steel Padlock Travel Suitcase Diary Lock Luggage Schoolbag Anti-theft Security Padlock 2 Keys
Aliexpress UK
Yale Deadlocking Nightlatch, High Security with Automatic Deadlock, Dark Metallic Gray/Brass, 60 mm Deadlock operated by key from outside, ideal if property is left unattended for long periods Convenient lever handle to operate lock inside the property Internal snib button is used to engage the Deadlock or temporarily hold back the latch bolt Includes Yale rim cylinder operated by key from the outside with standard security components Supplied with two standard Yale keys and fixing pack 2-year guarantee Note: Please refer to the product images for the dimensions.
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KABA MU78 Positive Groove AB Decoder Tool Professional One-Character Key Positioning Locksmith Tool High-Security Lock Opening
Aliexpress UK
YALE YAL85DMGSC B-85-DMG-SC-40 Nightlatch Dark Metallic Finish, High Security with Automatic Deadlock, Gray, 40 Deadlock operated by key from outside, ideal if property is left unattended for long periods Convenient lever handle to operate lock inside the property Internal snib button is used to engage the Deadlock or temporarily hold back the latch bolt Includes Yale rim cylinder operated by key from the outside with standard security components Supplied with two standard Yale keys and fixing pack 2 years guarantee
eBay
Zinc Lock Core Easy To Use Euro Cylinder Barrel Door Lock Aluminum Lock High-quality For Exterior Doors Home Security
Aliexpress UK
Locks with a 40mm backset are normally used where there is restricted space, such as on a narrow glass panelled door. Yale's High Security P1 Double Nightlatches are suitable for timber external doors and are ideal for glass panelled doors.
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Adjustable Child Safety Harness Clip, Anti-Escape Lock for Car Seat, Stroller & Highchair Security
Aliexpress UK