BS1 Max Security BS3621 Nightlatch | Insurance Approved | YaleHome
ERA High Security British Standard BS3621 Rated - Night Latch With Ant-Thrust - Satin Nickel | G Johns & Sons
High Security Dual Front Door Lock Kit - Auto Locking BS8621 Mortice Nightlatch & BS3621 Mortice Dead Lock - Antique Brass (Lacquered) | G Johns & Sons
YALE PBS2 total security door lock | in Broadstone, Dorset | Gumtree
Yale PM560 British Standard BS3621 5 Lever Sash Lock 64mm - Chrome | Homebase
YALE PBS1 Front-Door Lock | NEXT DAY | LockDoctor.Biz
Yale PBS1 BS3621 Cylinder Rim Deadlocking Night Latch
ERA High Security British Standard BS3621 Rated - Night Latch With Ant-Thrust - Polished Chrome | G Johns & Sons
Yale Standard British Standard PBS1 BS3621 Nightlatch Brasslux/Brass - Handles4doors
Yale PBS1 & PBS2 Auto Deadlocking Nightlatch, Dark Metallic Grey With Polished Brass Rim Cylinder - L9404 from Door Handle Company
BS1 Max Security BS3621 Nightlatch | Insurance Approved | YaleHome
Yale PBS1 BS3621: 2007 High Security Nightlatch - Extra keys for your lock
Yale M560 5-Lever BS3621 Mortice Sashlock
Yale BS1 High Security Nightlatch - BS3621"
BS 3621 British Standard Insurance Approved Locks
ERA BS3621 2007 Double Locking Nightlatch - 40mm PB 1830-31