Probrico Double Cylinder Deadbolt Keyed on Both Sides Home Door Locking Security Round Knob Lock Oil Rubbed Bronze Keyed entry deadbolt with a traditional design for an exterior door; easy installation in just minutes with a screw driver For use on exterior doors where a deadbolt on both side and keyed entry and security is needed Features an adjustable latch 2-3/8" or 2-3/4"(60mm or 70mm) to fit all standard doors 1-3/8 '' to 1-3/4 '' (35mm-45mm) thick. The latch plate is square, and can't be removable Conformed with ANSI Grade 3 Security. Metal construction adds strength, security and durability Deadbolt operated by key on both sides