Knowledge Corner: Era 5 lever High SecurityA 5 lever mortice lock is an absolute essential for front and back doors. The best way to secure a door, many insurance companies specify BS3621 five-lever mortice locks must be fitted as a condition of home insurance policies. Be sure to look out for the British Standard kitemark that assures the lock is proof against drilling, picking, cutting or forcing.
A 5 lever mortice lock has the classic keys and key hole and a sturdy bolt that engages in a slot recessed in the frame. This means it is strong and will resist a ‘kick-in’ attack.
Most mortice locks have a lever mechanism – the key operates a series of levers that open and close the bolt. Simple two-and three-lever locks are cheap but also easy to break into; for real security, a 5 lever lock should be regarded as the acceptable minimum.
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