The Master Lock No. TUO0115 features a tulip style knob with six-way adjustable latch to fit all doors with 2-3/8in or 2-3/4in backset, square, rounded corners, or drive-in. This knob offers ANSI GRADE 3 performance for exterior locking applications. The satin nickel finish provides a sleek appearance. The Ten Year Limited Warranty provides peace of mind from a brand you can trust.