The thumb turn euro door lock cylinders are also a solution where persons inside the property need to provide access such as for external care or help needs and could lock people out by turning the keys and not removing them which prevents an outside key holder been unable to unlock the property such as vulnerable adults.
Thumb lock for upvc door.
When it comes to lock installation for upvc doors special consideration has to be taken because only surface mounted locks can be used.
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These thumbturn euro cylinders barrels are suitable for upvc doors patio doors and french doors.
You will usually find a multipoint lock with a euro cylinder on most upvc doors.
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The for extra security we recommend the lock standard of any euro cylinder on a upvc door is either an ss312 diamond approved cylinder or ts007 3 star.
Mortise locks that is locks which require a pocket a mortise to be chiseled out to form a space big enough to house the lock cannot be used.
Starting on the thumbturn side measure from one end of the barrel to the centre of the fixing screw hole this is size a.
Euro cylinder locks are prone to lock snapping though please read our guide here on lock snapping.