Resistant to pick and bump security attacks, certified as meeting ANSI grade 2 standards. Easy 3-step installation, only a screwdriver needed. Quality materials and construction for exceptional security. Quality finishes coordinate with plumbing and lighting. For residential single and multi-family doors. Door thickness range 1-3/8 inch to 1-3/4 inch (35 millimetre-44 millimeter) standard. Universal latch standard, fits either 2-3/8 inch (60 millimeter) or 2-3/4 inch (70 millimeter) backsets. Dual option latch, radius Corner and drive in.