Features: According to DIN 18.250 class 3 For wooden or steel doors For single-leaf doors Optional for rebated or non-rebated doors Suitable for doors where single action of escape is required The door will be re-locked automatically when it's closed and the security will be ensured. Technical data Follower 7mm 8mm 9mm Distance 72mm Backset 50mm 55mm 60mm 65mm Forend Type: Round head, Square head Thickness 3mm Width 20mm 22mm 23mm 24mm Forend finish Stainless steel: Satin stainless steel, Stainless steel polished Accessories Striking plate Pocket Lock and striking plate fixing screws Type 5072ZN 5572ZN 6072ZN 6572ZN