For professional needs such as small apartments, churches, restrooms and small offices; specifically designed where basic security needs or specific codes must be met, but usage is low to moderate. For residential single and multi-family entrance doors. Unlocked by key from outside when outer knob is locked by turnbutton on inside knob; Emergency Exit feature, no unlocking required for panic exit, inside knob always unlocked. 1 piece knob for better security and appearance. 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. 3 piece assembly for easy installation. All locksets have the same finish for both interior and exterior p

WARNING: This product is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.