Split spindle locks ASSA introduced the split spindle lock on the Swedish market in the year of 2000. The split spindle is actually the technical solution, but it has also given the name to the function that makes it possible to open the door from the inside. The function has for a long time been the primary choice for hotel locks, but also has the legitimacy in both apartment blocks as in office, industrial and institutions. 504-50 RH out/LH inLock case for interior doors, classrooms, offices, techni… 509-50 RH out/LH inLock case for interior doors, classrooms, offices, techni… 1520-50 RH out/LH inLock case for classrooms, hotel rooms, technical areas, o… Do you want to create a safe lock environment? ASSA OEM has created "The lock guide by ASSA OEM", and it's made to give you knowledge and tips about approved lock sets. We really encouring poeple to read our tips and guidelines here: The lock guide Want to download our product catalogues? If you prefer to download our product catalogue - you can download it here! We also provide instructions, declarations and other documents in our download documents section.Check it out!