Georgian Series F51A GEO609KA4 Keyed Entry Knob, BrassZinc, Antique Brass

For residential single and multifamily entrance doors Unlocked or locked by keyed knob outside or turn button knob inside, emergency exit feature, no unlocking required for panic exit, inside knob always unlocked 1Piece knob for increased security Solid brass trim and all metal parts Wrought brass exposed trim Pressure cast zinc tubular lock housing Key removable outside knob for easy cylinder replacement 3Piece assembly All locksets have the same finish for both interior and exterior parts Door prep 218 in crossbore, 78 in or 1 in edge bore, 1 in x 214 in latch face, 12 in throw standard Door thickness 138 to 134 in Cylinder 5pin tumbler C keyway with nickel silver keys 2 Faceplate 1 in x 214 in Strikes of Full lip, 158 in x 214 in, no box Bolt 78 in housing and 1 in throw ANSIBHMA A15622011 Commercial Grade 2, ANSIBHMA A156392015 Residential Grade AAA and available UL listed for 3hour fire door Latch 1 in x 214 in, 14 in radius corner faceplate, 78 in housing diameter, 12 in throw, circular drive in included, universal latch BACKSET Dual backset latches, fits either 238 in or 234 in backsets