Global Door Controls Commercial Storeroom Ball Knob Lockset in Brushed Chrome Door thickness: adjustable 1 3/8-Inch-1 7/8-Inch: Backset: 2 3/4-Inch: Strike: ANSI 1 1/4-Inchx 4 7/8-Inch curved lip Keying: Schlage 5 pin keyed: Key: 2 five pin nickel plated Construction: Steel, zinc dichromated resists corrosion, heavy duty spring cage reinforced for knob return Latch: 1/2-Inch projection stainless steel; Bore: 2 1/8-Inch hole retrofits all grade 2 cylindrical locksets Brushed Chrome Finish Easy installation - minimum working parts