Cardlock Classic The classic cardlock is a mechanical lock equipped with a robust hookbolt which creates a very strong connection between door and frame. Access to locking the cardlock is granted with a card with one or two punched holes. The holes can be placed in various positions giving the possibility to separate access between different zones like the men and ladies changeroom. Cardlock Classic 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!