The code K-12968-00-0-X corresponds to an external locking mechanism (lock) of the German company GU (Gretsch-Unitas), which is placed on the door or window leaf. It is easily installed even after the frame has been installed.

Product Features
Type: External locking (drehsperre) that operates with a key.
Usage: Designed for aluminum systems, such as the ALU-JET 06 series. It allows the frame to operate only in tilt and not open when the cylinder is locked.
Color Coding [The number replaces "-X" at the end of the code]:
1: Silver
5: Traffic White
6: Black
7: Special color