Cover plate 823 Application For situations where handle holes need to be covered. Material Stainless steel. Installation Screw Use no. 6 (3.0 mm) TKFX/DIN 7995. For outside mounting of ASSA 823, use the corresponding one-way screw. Spacer plate 4548Used when mounting is done without drilling for the secur… Handle fixture 842For handles on windows and doors without screws for safet… Fixing plate ASSA 7352Used for single sash or coupled sash where only handle AS… 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!