Locks, Latches Guide - Door Handle Company - Online Store
A GUIDE TO LOCKS AND LATCHES
Generally it is possible to use your existing locks or latches, together with your new handles. However please ensure to check the following:
They still work well
The finish of the lock or latch face match those of the new handles.
The existing lock or latch suits the purpose you require.
i.e if you want to be able to lock the door with a turn and release mechanism, you may need to replace a latch with a bathroom lock.
There are two types of locks available:
SASH LOCKS & BATHROOM LOCKS
The SASH LOCK comprises of a latch tongue, to be operated by the handle and a bolt to be operated by a key.
These lock have internal levers which are operated when the key is turned.
For internal doors a three lever sash lock is usually sufficient.
For external doors you should select a five lever British standard sash lock. Basically the more levers required to operate the lock the more secure the lock is.
BS3621 is the British standard covering lock security. The standard is strongly recommended by the police and insisted upon by most insurance companies.
The standard ensures that the lock is resistant to attack by drill, saw or force.
The BATHROOM LOCK comprises of a latch tongue, to be operated by the handle and a bolt that is operated by a thumb turn and release rather than a key.
There are two types of latches available:
TUBULAR LATCHES & BOX LATCHES
The TUBULAR LATCH is by far the most popular, due to it's size and shape it is very quick and easy to fit.
The BOX LATCH serves the same purpose, however as a much larger recess is required to be cut into the door, it is not quite as easy to fit. The choice is often determined by the existing latch that you wish to replace.
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