Even better once shut they can t be opened from outside without a key.
Slam shut door lock.
It has an actuator unit positioned between the centre case and the top bolt.
When the door is closed a trigger in the actuator is depressed by a strike plate fitted to the outer frame which.
We re happy to recommend the winhaus av2 slam lock which comes with a 5 year guarantee.
They don t have level handles.
To lock from inside you turn the key or thumb turn to wind out the deadlock.
You can however bolt the door from the inside by turning the key.
A single rotation of the key then locks the door.
These locks are generally designed for pull bar handles but can be used with a knob and finger pull.
Pas 24 tested and secured by design licensed the fire door slam shut autolock has been engineered to provide long term reliability and security.
Available in dual spindle for use with 92mm 92mm or 92mm 62mm long backplate handles and is supplied complete with strike plate.
Tch hardware 2 pack stainless steel paddle slam latch with lock key flush single point handle for door trailer rv jeep 4 1 out of 5 stars 18 39 95 39.
Externally you pull to and all latches engage and you turn key to deadlock.