Schlage FA40 AND 619 Andover Privacy Knob, Satin Nickel Universal knob mounts to right- and left-hand doors Latch adjusts to fit 2-3/8 in. And 2-3/4 in. Holes in standard door preparations Fits metal and wooden doors 1-3/8 in. To 1-3/4 in. Thick Brass construction and all-metal chassis Satin nickel finish One piece knob for better security and appearance Concealed screws Fits standard door preps Easy one tool installation ANSI grade 2 lock