The metal furniture lock that can be assembled from the front is designed for locations that require an extremely high level of security. In the especially strong metal furniture box, the strong basic product has been supplemented with features that further increase durability. Hardened steel parts withstand great physical force. Used e.g. in various gaming and vending machines and devices, storage spaces and drawers, locking of equipment and workstations and other objects where high locking security and reliability, but also ease of use are required.