Kwikset 663 Inside thumbturn only Deadbolt lock: function and door-thickness specifications

Lock and fitting dimensions

Check the backset, centre distance, faceplate and mounting points against the specific model drawing.

Specifications

Product function

Inside thumbturn only

Minimum compatible door thickness

1-3/8 inches

Maximum compatible door thickness

1-3/4 inches

Assembled height

2-1/2 inches

Assembled width

2-1/2 inches

Body material

Metal

SmartKey included in the configuration shown online

No

Latch backset options

2-3/8 or 2-3/4 inches (adjustable latch described on the official page)

Mechanical operation

Deadbolt

What this configuration is intended for

663 One Sided Deadbolt - Thumb Turn Only uses a deadbolt, with function: Inside thumbturn only. Check the door application against the actual grip and operation of the knob or lever.

How to compare within the series

A lever operates differently from a knob. For privacy functions, also distinguish inside push-button and thumbturn locking, and determine whether the configuration includes an interconnected deadbolt.

Reading dimensions and configurations

Door-thickness limits come from the official specification table; assembled dimensions are included only when clearly formatted. Similar dimensions do not make latches, fixings or door preparation directly interchangeable.

Limitations

• The official page shows a specific configuration; these specifications do not automatically apply to other keying systems, finishes or regional versions in the series.
• Specifications retain inches as used on the official page. Obtain the current dimensional drawing and complete order code for procurement and installation.

Sources

Manufacturer documents are provided in their original language.

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