Invisible door lock, interior lock, tubular mortise lock, brass and stainless steel cylinder, 3 keys, burglar-resistant, complete accessories

General Description: The invisible door lock is designed to offer optimal security while remaining discreet. Made of brass and stainless steel, it is ideal for exterior doors requiring a key for entry and security. This deadbolt lock is easy to install and use, with technology allowing for self-keying in just three steps. Technical Specifications: Materials: Brass and stainless steel; Deadbolt operated by key on the outside and by a knob on the inside; Adjustable latch: 60 mm - 70 mm; Suitable door thickness: 35-50 mm