Kwikset 985 3 Smt Cp K4 V1 Double Cylinder Deadbolt

Product Description

The KWIKSET 985 3 SMT CP K4 V1 is a Grade 1 double cylinder deadbolt finished in polished brass, designed for residential entry doors where keyed access is required on both sides. Built as part of the Signature Series, it incorporates SmartKey rekeying technology, allowing the lock to be rekeyed in seconds without removing it from the door. Ball bearings inside the cylinder resist drill-out attacks, and concealed screws prevent external tampering. The adjustable latch fits both 2-3/8 inch and 2-3/4 inch backsets, making it compatible with a wide range of door preparations. This unit is sold as a keyed-alike set of 4.

This deadbolt is suited for residential applications where multiple entry points must be keyed to a single key, such as front and back doors on a single property or across multiple units in a small rental portfolio. The double cylinder configuration requires a key to operate from both the interior and exterior, a common requirement in doors with glass panels or sidelights. Licensed locksmiths and general contractors typically handle installation, though experienced DIYers familiar with door hardware can complete the work with standard tools.

Key Features

• SmartKey rekeying technology allows field rekeying without lock removal
• Grade 1 ANSI security rating for residential deadbolt applications
• Ball bearing cylinder construction resists drill-out attacks
• Adjustable latch fits 2-3/8 inch and 2-3/4 inch backsets
• Concealed screws reduce external tamper exposure
• Keyed alike across all 4 units in the set for single-key convenience
• Lifetime mechanical and lifetime finish warranties included

Compatibility

Designed as a Signature Series OEM-style replacement or new-installation deadbolt for standard residential door preparations accepting 2-3/8 inch or 2-3/4 inch backset latches with a round corner faceplate.

Installation Notes

Installation is typically performed by a licensed locksmith or a qualified contractor. Before beginning, confirm the door prep matches the required backset and that the bore diameter is correct for the cylinder. Follow all local building codes regarding egress and emergency exit requirements before installing a double cylinder deadbolt, as keyed-interior operation can affect emergency egress. Do not overtighten mounting screws, as this can bind the latch mechanism.