The Master Lock No. BCC0603KA4S features a keyed alike biscuit style knob and single cylinder deadbolt, with interior thumb turn. The six-way adjustable latch fits all doors with 2-3/8in or 2-3/4in backset, square, rounded corners, or drive-in. The deadbolt is four way adjustable for 2-3/8in or 2-3/4in backset, square, or rounded corners. This knob and deadbolt combo pack is ANSI Grade 3 and designed for exterior door applications. The polished brass finish provides a sleek appearance. Operates with SC1 Cylinder.The Limited 25 Year Mechanical/Five (5) Year Finish Warranty provides peace of mind from a brand you can trust.