Kodia EL-20 30mm sliding cross body lock, a mortice hook lock for sliding aluminium doors that opens with cross keys. It is also listed as EL-20 (L-TYPE), 30mm Sliding Cross Key. A chrome hook bolt swings out from the faceplate to catch the strike and hold a sliding door shut. The lock case is black, the long faceplate is chrome with screw fixing at top and bottom, and a brass cross-key cylinder sits in the case. Three chrome cross keys come on a ring. Part numbers: EL-20, EL - 20, EL-20 (L-TYPE)