Electrified Mortise Lock, Fail-Secure, 24V, REX, No Cylinder, ARCN Trim, Satin Stainless Steel. Yale's 8800 Series Mortise Locks are engineered for robust strength and longevity across various commercial settings. Installation is simplified with quick lever adjustment, reversible latchbolt, 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 extended durability.