Electrified Mortise Lock, Fail-Safe, 24V, REX, Less Cylinder, AUR Trim, Satin Brass. Yale's 8800 Series Mortise Locks are engineered for robust strength and durability across various commercial settings. Installation is simplified with quick lever adjustment, reversible latchbolt in the field, and standard non-handed strike. This series boasts enhanced security with a reinforced stainless steel deadbolt, heavy-duty, vandal-resistant trim, and ANSI/BHMA Grade 1 certification for longevity and durability.