The passage function is for doors that never need to be locked. Constructed with a robust cylindrical locking mechanism, 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 for commercial and residential use. It is UL listed for 3 hour doors. It meets or exceeds ANSI Grade 2 standards.
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