The thickness of metal door - 6mm (series L- 3mm, L.16-2mm) The thickness of metal casing - 3mm (series L-2mm, L.16-1,5mm) Two steel pins Internal loops Movable shelf (except L.16) Locks: 1. Key lock SS 106 (L series) 2. Certificated key lock, brand STUV (Germany) VDS class 1 3. Mechanical code lock, brand ..