The 841 is a concealed lever operated 2 part slave lock which is suitable for use with Timber and Composite French Doors. Shootbolts operated by a lever in the faceplate secure the slave leaf to the frame.
This special slave door lock also operates as a keep into which the Master Leaf is locked.
The Master lock is a 2 part lock which is compatible with the 841. All locking points are adjustable, including the shootbolt keeps to ensure maximum security and weather sealing.
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