Mottura Series 84 geared locks for security doors are operated by a Euro-profile cylinder and use a gear-assisted mechanism to reduce effort on the key.

The geared movement provides smoother, quieter operation while contributing to resistance and security performance.

Series 84 locks are fitted with a bolt-reinforcement lever designed to resist forced bolt retraction without the key, with resistance values stated above the applicable reference requirement.

Check dimensions, backset, centres, bolt arrangement and cylinder configuration before replacing an existing security-door lock.