Kwikset 663SQT-26.DS Square Deadbolt Bright Chrome

Product Description

The KWIKSET 663SQT-26.DS is a one-sided turn square deadbolt designed for residential door security applications. It includes an RCAL latch, dual RCS components, and a 5303 full lip strike plate, delivering a complete ready-to-install deadbolt assembly. The Bright Chrome finish provides a clean, polished appearance suited to a range of interior and exterior door hardware configurations. This unit is sold individually and is intended for installation by a qualified locksmith, door hardware installer, or experienced tradesperson. The package weighs 0.7 pounds, making it easy to handle and transport on the job.

This deadbolt is designed for single-sided applications where a turn function is required on one side only, with no keyed exterior cylinder. Typical installations include interior doors where a thumb-turn or single-sided lock is needed, such as utility rooms, storage areas, or secondary access points. The included full lip strike and dual RCS hardware reduce the need for separate component sourcing during installation.

Key Features

• One-sided turn function — no keyed exterior cylinder required
• Includes RCAL latch for complete bolt-and-latch assembly
• Dual RCS hardware included for reinforced strike installation
• 5303 full lip strike plate included in the box
• Bright Chrome finish suits standard residential door hardware
• Sold as a single unit; available in case quantities of 12

Compatibility

Designed as an OEM-style replacement or new-installation deadbolt for residential door applications requiring a one-sided turn square deadbolt configuration.

Installation Notes

Installation should be performed by a licensed locksmith or qualified door hardware installer familiar with ANSI deadbolt standards. Power down any connected access control or electronic door systems before servicing adjacent hardware. Verify door thickness and backset dimensions before installation to confirm proper fitment of the latch and strike. Follow local building codes for residential door security hardware requirements.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.