Global Door Controls Brushed Chrome Eiffel Style Commercial Entry Leverset with Removable Bolt UL R20759 Listed ANSI A156.2 Grade 2 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 6 pin keyed six KD; Key: 2 six pin nickel plated Construction: Steel, zinc dichromated resists corrosion, heavy duty spring cage reinforced for lever return Latch: 5/8-Inch projection stainless steel 3 hour UL; Bore: 2 1/8-Inch hole retrofits all grade 2 cylindrical locksets