Lock case 311 Application Lock case for interior doors in industrial buildings, retail premises, sliding doors, swing doors, etc. Features Available with backset 35, 50 and 70 mm. Complies with the requirements of Swedish Standard SS 3522, class 2. With hook bolt. Hook bolt interlocks the door and the frame. Function Hook bolt is operated with the key or the thumbturn Ordering Options 357530167057 LOCK CASE 311-35 357530437057 LOCK CASE 311-35 MA 357515167057 LOCK CASE 311-50 357515437057 LOCK CASE 311-50 MA 357531167057 LOCK CASE 311-70 357531437057 LOCK CASE 311-70 MA Close Lock case 310Lock case for interior doors in industrial buildings, ret… Lock case 313Lock case for interior doors, sliding and swing doors, re… Lock case ASSA 340 Connect and 236 Connect340 Connect is a lock for interior doors in industries, 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!