The classroom function has a cylinder on the outside of the door so teachers cannot be locked out from the inside of the classroom. From the inside, the door is always unlocked so students can’t get locked in. Constructed with a robust cylindrical chassis, this lock is designed for heavy-use doors. It is extremely robust mechanically and has a durable finish. This lock is also versatile and can fit doors from 1 3/8” to 2” thick. It meets or exceeds ANSI Grade 2 standards and is ADA compliant.
Universal Hardware Heavy Duty Lever Installation