Passage Door Six-way adjustable latch fits all doors: 2-3/8in (60mm) or 2-3/4in (70mm) backset, square, rounded corners, or drive-in ANSI GRADE 3 performance For interior non-locking applications - Hall or Closet Master carton qty 4 The Master Lock No. BAO0415 features a ball 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 interior non-locking applications. The satin nickel finish provides a sleek appearance. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.