QS6055/1B Heavy Duty Latch Bolt and Dead Bolt Select Cylinder Insert:Add QS1108BL Black Knob Cylinder A grooved door adds horizontal

A grooved door adds horizontal lines that break up the surface and give the door a more traditional or textured appearance

Security-conscious homeowners seeking a low-maintenance alternative to steel security gates

resulting in smoother operation

The QS4403 is suitable for residential

QS6055/1B Heavy Duty Latch Bolt and Dead Bolt Select Cylinder Insert:Add QS1108BL Black Knob Cylinder A grooved door adds horizontalExtra Heavy Duty, Silent Latching Black Stainless Steel Mortice Lock with Latch Bolt & Deadbolt 55mm backset 60mm centre Black Powder Coated Complete with Striker Plate Requires a cylinder insert to be ordered separately. Select either: QS1103B 60mm Black Double Cylinder or QS1108BL 60mm Black Knob Cylinder in the checkbox above.