Kwikset 663-514.DS One Sided Turn Deadbolt Matte Black

Product Description

The KWIKSET 663-514.DS is a one-sided turn deadbolt designed for doors that require a deadbolt operated by a thumb turn on the interior side only, with no keyed cylinder on the exterior. This configuration is common on interior doors, storage rooms, or secondary egress points where exterior key access is not required. The unit ships with a 2-3/8 inch backset latch, dual radius corner strikes (RCS), and a 5303 full lip strike, giving installers a complete, ready-to-install hardware package. The Matte Black finish suits a wide range of residential door styles. Installation is handled by a licensed locksmith or finish carpenter working within standard residential door prep specifications.

This deadbolt is suited for residential applications where a single-sided locking function is needed. The included 2-3/8 inch radius corner latch (RCL) fits standard residential door preparations. The dual RCS and full lip strike are pre-matched to the unit, reducing the need to source additional strike hardware separately. The Matte Black finish is consistent across the trim and hardware components for a uniform appearance. This product is sold as an individual unit and is also available in case quantities of 12.

Key Features

• One-sided thumb turn operation — no exterior keyed cylinder
• Includes 2-3/8 inch radius corner latch (RCL) for standard door prep
• Ships with dual radius corner strikes (RCS) and 5303 full lip strike
• Matte Black finish applied consistently across all hardware components
• Complete kit reduces additional strike hardware sourcing at the job site

Compatibility

Designed as an OEM-style replacement or new-installation deadbolt for standard residential doors prepped for a single-cylinder deadbolt with a 2-3/8 inch backset.

Installation Notes

Installation is typically performed by a licensed locksmith or experienced finish carpenter. Power down any associated access control or electronic door hardware before servicing the door assembly. Verify door thickness and backset measurement before installation to confirm proper latch and strike alignment. Follow local building codes for egress door hardware requirements when installing single-sided deadbolts on exit-capable doors.