Brass, Single Cylinder Deadbolt, Deadbolt Thrown Or Retracted By Key From Outside Or By Inside Turn Unit, Universal 2-3/8" To 2-3/4" Backset, 1-3/8" To 1-3/4" Door Range, Grade 1, Ansi/Bhma Certified A156.5-2001, Lifetime Brass Finish, Box Pack.