What Is a Sash Lock? Types, Sizes and Security Explained
Everything you need to know about sash locks — what they are, the difference between 2, 3 and 5 lever types, standard sizes, BS3621 security ratings, and where they should...
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What Is a Deadlock? A Complete Guide to Deadlocks for UK Doors
Learn what deadlocks are, how they work, where they are used, the difference between deadlocks and sash locks, and which type is best for internal or external doors in the...
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What Is the Difference Between 2, 3 and 5 Lever Locks?
A complete guide explaining the difference between 2, 3 and 5 lever mortice locks, including security levels, insurance standards, and which locks are best for internal or external doors.
