• For residential single and multi-family entrance doors • Deadbolt thrown or retracted by key outside or by turn unit inside; bolt automatically deadlocks when fully thrown • 7/8 wrought brass trim ring reinforced with security inserts • Concealed spin ring rotates to protect against wrenching the cylinder • Solid steel door frame reinforcer with 3 screws protects against kick-in attack • Solid 1 piece design protects against hammer and crowbar prying attacks • 2-1/2 steel adapter ring plated • Size In=5/8 • Color Code=Turquoise