... 2.Meets ANSI/BHMA A156.2 Grade 3 Specifications. 3.Brass,SUS304/SUS201/ rosette and ball 1.Key system:KD/KA ... .5-pin and 6-pin are available3.Keys:Three nickel-plated brass keys.4.Key way:Schlage,Weiser,Yale, Kwiset,Segal,C4 ... -3/8" / 2-3/4"(60mm/70mm).7.Ball&Rosette:Brass,SUS304/SUS201/8.Function:Entrance/Privacy/Passage/CLS.