Door Knob Lockset, Ball, Entrance Price For: Each Backset: 2-3/4" Item: Knob Lockset Style: Ball Fire Rated: 3 hr. Location Type: Commercial Grade: 2 Number of Keys: 2 Pins: 6 Keyway Type: Para For Use With: Metal Doors with Metal Frames, Wood Doors with Metal or Wood Frames Item: Knob Lockset Series: 4600 Style: Ball Finish: Satin Stainless Steel Required Door Thickness: 1-3/8" and 1-3/4" Keying: Keyed Different Standards: ANSI/BHMA A156.2 Series 4000, Grade 2 Lockset Performance Strength: Medium Duty Strike Type: T Strike Strike Dim.: 2-3/4" x 1-1/8" x 1-1/4" Key Material: Nickel Silver Knob Material: Heavy Gauge Steel Lockset Function: Entrance Country of Origin (subject to change): South Korea