Rest assured with the peace of mind that Brinks door hardware is protecting your home. A trusted name in security since 1859, Brinks door lock and deadbolt combination are both pick and bump resistant and each include a drill resistant pin and an anti-pry shield. The Brinks single cylinder deadbolt is keyed on one side with a 1 inch deadbolt and a steel anti-saw pin. This combo pack meets ANSI Grade 3 standards. The keyed entry function is best for front, back and side doors. The knob & deadbolt are keyed alike for your convenience. There are 4 keys included.