This Yale door knob range is recommended to be used on internal doors, with a wide range of functions like bathroom, passage, storeroom and more. FEATURES: • Standard: ANSI / BHMA A156.2.2003 • Testing Cycles: Guaranteed for 175,000 cycles tested • Materials: - Chassis: Steel - Latch and Bolt: Zinc - Strike: Stainless Steel / Brass - Knob: Stainless Steel / Brass - Rose: Stainless Steel / Brass • Backset: 60mm / 70mm • Door Thickness: 35 ~ 45mm • Function: Entrance, Bathroom, Passage, Storeroom • Cylinder: Solid brass 5-pin tumbler cylinder • No. of Keys: 3pcs of nickel plated brass key • Master key available upon request Available Designs : •BR-Brandywine •CA-Carolina •OV- Oval Availble Finishes: • US5- Antique Brass • US32D - Satin Stainless Steel Functions : • 5127 – Entrance w/ Keys • 5122- Bathroom w/o keys