Yale Security E1r Satin Chrome Single-Cylinder Deadbolt

Single cylinder deadbolt operates by key outside, retracted by thumbturn inside; classroom thumbturn will not project deadbolt. Can be installed on doors prepared to ANSI/BHMA A156.115 specifications using a simple bored-hole installation for square or beveled doors, opening in or out. ANSI/BHMA Grade 1. 1-in throw, solid steel deadbolt with hardened, free spinning, steel pin insert. 1-year mechanical warranty.