Question: what is the difference between a 3 lever and 5 lever lock?
Answer: What is the difference between a 3 lever and 5 lever lock? The difference between a 3 lever lock and a 5 lever lock is that a 3 lever lock is less secure because it has fewer levers which increases the risk of key duplication. Also, a 3 lever lock will NOT be BS3621 approved due to the poor security of the lock.