Tube and mortise lock as a single unit. Prefabricated lock tube 40 × 40 × 2.0 mm, smooth, length 2,000 mm, with two M5 threads and a pre-installed lock for a 92 mm distance (backset 22 mm). Eliminates the need for cutting to size and machining a lock recess in the profile. Polished to 240 grit, V2A.