Products Categories Mechanical Products Locks Mechanical Security Door Hardware Hinged Hinged Yale Quattro is the fourth generation of ASSA ABLOY’s security door lock with projection bolt, to suit hinged door applications. Yale Quattro® Security Door LockThe new Yale Quattro is the fourth generation of ASSA ABL… Yale Quattro® Hinged 3 Point Locking KitUsed in conjunction with the Quattro Hinged Security Door…