Lock with improved locking system

A lock with an improved locking system comprising a lock block, a support, at least two fastening screws that fasten the lock block to the support with a door located between the lock block and the support, such that a rotation of a shaft comprised within the lock block and fixed to a platen causes the platen to come into contact with a block positioned at a distance from the door to restrict the door from being opened, wherein the lock comprises a plurality of grub screws screwed into the support that project a length from the support, the length depending on a portion of the grub screw screwed into the support, wherein the length matches a clearance existing between the door and the support, the clearance depending on a depth of the door so that the lock fastens doors with a variety of depths.