Hinged Door Locks and Hardware From secure locking to fixing and control devices including Deadbolt, Deadlatch, Key in Knob and Key in Lever products. Whitco Leverset Digital DeadlatchAffordable keyless digital technology. Whitco Ball Series KnobDoor furniture lockset. Whitco Bell Series KnobDoor furniture lockset. Whitco Bevel Series LeverDoor furniture lockset. Whitco Bow Series LeverDoor furniture lockset. Whitco Double Cylinder DeadboltHigh security rimlock. Whitco Double Cylinder DeadlatchRimlock with Safety Release™ feature. Whitco Internal Door FurnitureKnob with concealed fixing. Whitco CYL4 Patio BoltConcealed fixing for security and style. Whitco Flush BoltsDesigned for aluminium door applications. Whitco Timber Door HingesFast fix Hirline steel.