Friction door holder 523T Application Used for external doors, glazed doors, storage room doors, etc. Features Holds the door with friction in desired open position. Prevents the door from blowing closed and reduces the risk of jam injuries. The friction can be adjusted with the friction adjuster (on ASSA 534R, a tool must be used to loosen the lock nut). Fits both right and left. Construction a) Frame fixture b) Telescope tube c) Friction adjuster d) Nut M16 e) Rod f) Door fixture Material Frame and door fixtures of varnished steel with cover plate of acetal plastic. Varnished steel telescopic tube with joint head of acetal plastic. Friction adjuster of acetal plastic (for ASSA 534R: nut of nickle plated brass and stainless steel friction adjustment). Stainless steel rod with joint head of acetal plastic. Instructions for milling Mounted according to instructions below. Screw For frame fixture, use no. 9 (4.5 mm) TFX / DIN 7997. For door fixture, use no. 7 (3.8 mm) TFX / DIN 7997. Casement stay ASSA 230Used for outward-opening windows. For sash width over 500… Door holder ASSA 520Used for outward-opening glazed doors. Ventilation stays 86ASSA 86, for outward-opening windows. 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!