Single-Sided Thumbturn Deadbolt, Satin Nickel

Secure interior-only entry points with the Kwikset 663 one-sided deadbolt featuring Microban antimicrobial technology. This mechanical thumbturn lock installs in minutes and provides keyless security with a clean satin nickel finish.

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Key Features:

• One-Sided Keyless Security: Interior thumbturn deadbolt with no exterior trim for rooms or doors needing privacy and security
• Antimicrobial Protection: Microban technology helps keep the surface 99.9% cleaner than unprotected hardware
• Quick DIY Install: Installs in minutes with just a screwdriver; round-corner latch and strike included
• Durable Build: Metal construction with ANSI/BHMA Grade 3 security rating
• Versatile Fit: For 1-3/8 in. to 1-3/4 in. thick doors; 2-3/8 in. backset and 1 in. throw

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Deadbolt Type	One-sided keyless deadbolt
Operation	Interior thumb turn; no exterior trim
Finish	Satin Nickel
Finish Family	Satin Nickel
Hardware Color Family	Nickel
Material	Metal
Commercial/Residential	Residential
Door Handing	Universal
Door Lock Style	Classic
Electronic/Mechanical	Mechanical
Features	Easy installation; Microban antimicrobial protection
Included	Installation instructions; mounting hardware; round deadbolt strike
Interior/Exterior	Interior, Exterior (no outside access)
Keyway	No keyway
Product Weight	1.33 lb
Security/ANSI Grade	ANSI/BHMA Grade 3
Total Number of Keys Included	0
Assembled Depth	0.844 in
Assembled Height	2.5 in
Assembled Width	2.5 in
Backset Size	2-3/8 in
Deadbolt Bore Hole Diameter	1 in
Deadbolt Cross Bore Diameter	2.125 in
Deadbolt Strike Height	2.25 in
Deadbolt Strike Width	1 in
Deadbolt Throw Length	1 in
Deadbolt Trim Ring Diameter	3 in
Projection	0.844 in
Required Door Thickness	1-3/8 in to 1-3/4 in
Certifications and Listings	No certifications or listings
Manufacturer Warranty	Lifetime mechanical and finish warranty

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Frequently Asked Questions (FAQ):

Q: Will this work on exterior doors?
A: It can be used on interior or exterior doors where outside access is not required; there is no exterior trim or keyway.

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Q: What door thickness does it fit?
A: Fits standard doors 1-3/8 in. to 1-3/4 in. thick.

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Q: Is hardware included for installation?
A: Yes, mounting hardware, round-corner latch, and round deadbolt strike are included.

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Q: What is the backset?
A: Fixed 2-3/8 in. backset.

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Q: Does it include keys?
A: No keys are included or required; it’s operated by an interior thumbturn only.

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Streamlined Security with Soft Satin Sheen

This minimalist deadbolt adds a refined, modern punctuation to any door, its satin nickel finish catching light with a gentle luster. I love the sculptural thumbturn—subtle yet tactile—bringing form and function into graceful balance. Pair it with monochrome hardware and a painted door in muted hues for a quietly sophisticated moment. It’s an understated essential that elevates everyday living with effortless polish.

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Choose the Kwikset 663 for clean, keyless security and easy installation in minutes.

Warranty

Installation