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If you are not sure of what type of lock or latch you need perhaps this guide will be helpful.
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Latches
There are two main types of latches, the standard and the heavy sprung. The heavy sprung latch option is generally used for handles needing extra force on the return, for example heavy ironmongery handles. Most latches are used on doors that need to be shut, but that do not require a lock; for example on a bedroom or bathroom door. Most latches are operated with the use of a mortice knob or lever handle.
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Sash lock
The sash lock is a deadlock with a latch in one case. They are available in 3 lever or 5 lever options. The 5 lever being the most secure. Some of our locks have the British standard BS3621, these locks have to be clearly marked and meet the requirements for most insurance cover.
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Dead lock
The dead lock, is a lock which is opened and closed by only using a key. It is a simple and effective lock, mainly used with latches to add security. Deadlocks are often advised to be fitted near the bottom of the door. They are ideal for extra security on any door that has other locks. These locks are available with the British standard mark and are a requirement for most insurance cover. Insurance companies would want them fitted on doors containing the main locks.
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Dead bolt
A dead bolt function is similar to that of a latch. It has no spring action and will not push back in. You simply turn a key to lock and unlock. They are normally used to secure inside doors, or in conjunction with a turn and release knob.
Suitable for toilet and bedrooms doors.
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British standard lock: BS3621
There are a number of different locks available on the market today, but there are a few which bear the British standard mark BS3621, this mark is applied to any lock which has gone through a vigorous testing procedure to make them secure against any person trying to break the lock.
The testing procedure includes: drilling, sawing and using a lot of force to open the lock, they have minimum tolerances to pass. Once passed they are given the British Standard mark of approval. Most insurance companies specify that the final exit door locks are to the BS3621 standard, before they can offer any kind of cover.
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Fire resistance rating
Most locks will have a fire rating on them, and this is generally FD30/60. The 30/60 represents the number of minutes that it stays effective and functional in a full blown fire before it breaks down.
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