ANSI Grade (Security): ANSI Grade 3. Items Included: all door lock hardwares are all included, all your need is a screwdriver.
·Adjustable Backset Latch: 60mm&70mm(2-3/8''&2-3/4''). ·Door Thickness: 35mm-45mm(1-3/8" to 1-3/4"). ·Door Lock Opening Direction: reversible for both left&right handed. Passage : no lock, no keys. Hallway doors, laundry doors or closet doors. Privacy : can be locked/unlocked by thumb turn button inside & by any flat thing outside in emergency(like a coin or card). It can not only protect the privacy of the room owner, but also protect their safety in emergency. Usually used for guest rooms, bedrooms, bathrooms, kitchen, shower.(with 3 keys per set) can be locked/unlocked by thumb turn button inside & by keys outside. Usually use it for entrance, front/back door or office. Keyed entry door levers are NOT keyed alike!