Patented assembling system, with or without spring, with pre-assembled sub-rosettes.

Roses with 4mm thickness for a FLAT design.
The lever set is completely pre-assembled with all metal components.
The rosette cover turns allowing an invisible fixing through a spring loaded button.
Absolute stability thanks to a special spindle which doesn’t allow any movement in the lock’s hub.
Excellent stability.
The resistance and durability are guaranteed thanks to its innovative assembly.
Assembling screws are invisible and no grub screws is needed.
Innovative Design with possibility of flash assembly on pre-machined doors.