1.Key system:KD/KA/MK/CMK 2.Cylinder:Solid brass plug with zinc alloy housing.5-pin and 6-pin are available 3.Keys:Three nickel-plated brass keys. 4.Key way:Schlage,Weiser,Yale, Kwiset,Segal,C4 are available. 5.Door thinckness:35-45mm 6.Latch:Adjustable latch with 2-3/8" or 2-3/4"(60mm-70mm).Drive-in latch,4-way latch,and 6-way latch are all available. 7.Lever&Rosette:Zinc alloy 8.Function:Entrance/Privacy/Passage. 9.Fitting for both right opening and left opening doors.