mortise lock grades


Mortise Locks: a lockset where the case is designed to fit in a mortise in the edge of a door Medium, high to extra heavy duty Commercial, multi-family and institutional applications Pros - ...
Grade 1 locks are tested and certified to be in compliance with the following ANSI/BHMA Standards:   Cylindrical, Bored and Preassembled Locks & Latches   8...
The B500 deadbolts meet the following certification: ANSI A156.5, 2001, Grade 2. Available UL Listed for 3-hour fire door.
The B250 is Grade 2 but has no UL listing due to the holdback rose.
Schlage offers 629 and 630 stainless finishes on levers for the L-Series only.  These levers are made of 303 or 304 grade stainless steel.
The AL lock is a Grade 2 lock ANSI/BHMA Certified A156.2-2003, Series 4000, Grade 2, UL Listed for 3-hour fire door.
The American National Standards Institute (ANSI) and Builders Hardware Manufacturers Association (BHMA) have developed durability, strength and performance standards for every type of door hardware...
The B600, B700, and B800 are all grade 1 heavy duty commercial deadbolts.