Weiser GDC9471 Polished Brass Single Cylinder Deadbolt 1?1/2" to 2?1/8" diameter door face hole, 1" diameter latch hole Automatic adjustment to door thickness of 1-3/8? to 1?3/4? 1" projection deadbolt latch with 1/4" hardened steel free turning rollers T?Turns on single cylinder deadbolts meet handicapped specs.