The Universal Hardware Keyed Entry Knob with Deadbolt is designed for convenience and versatility. The lock is compatible with most interior residential and commercial doors. Ideal for doors that need to be locked and unlocked from interior with a thumb turn, and from exterior with a key. The door knob has a tubular chassis and fits doors 1-3/8” to 2” thick. It has a 3-hour UL fire rating and meets ANSI Grade 2 standards. The door knob and deadbolt are keyed alike.