Wow, there are a lot of conflicting answers here. Is this just a thumbturn lock for the inside of a door, and is it complete and functioning as sold?

Yes, the one I received was a full functional single sided deadbolt. A single sided deadbeat means that there is no exterior side to this deadbolt. There is no key side as with a typical deadbolt or blank plate even. Keep in mind that the installation of these is different than a typical deadbolt. It does come with the thumb turn side and plate as shown in the picture as well as the bolt and internal door mechanism, door frame plate, and screws.

Does this come with the exterior plate for the outside?

No it does not. You can no longer use a key but just locks the door from inside

Can this be used to replace a keyed lock? I have a Kwikset deadbolt that is keyed on the inside and would like to convert.

I tried to replace the inside keyed side of a kwikset deadbolt, but it didn't work. I decided not to return it since the price was so low and I felt like this was probably my fault for not researching enough. When this didn't work, I went to Home Depot and bought a whole kwikset deadbolt lock (both sides) for $5 more, which is what I should have done to begin with.

Is this replacing a deadbolt already in place? or does it come with the bolt?

This is designed to replace your interior latch lever only. Mainly for a cosmetic color change. For example; sometimes people may have gold with the finish showing wear and they decide to change it out for another finish too.

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Description

🔐 Secure your space with style and simplicity!

CLEAN MODERN AESTHETIC - Satin Nickel finish adds sleek style to your front entry.
BUILT TO LAST WITH MICROBAN - 99.9% cleaner surface protection plus lifetime mechanical warranty.
EFFORTLESS DIY INSTALLATION - All hardware included; install with just a screwdriver in minutes.
UNMATCHED INTERIOR SECURITY - No key needed—lock/unlock only from inside for ultimate peace of mind.
PERFECT FIT FOR STANDARD DOORS - Adjustable latch fits doors 1-3/8" to 1-3/4" thick with ease.

The Kwikset 663 Deadbolt offers Grade 3 BHMA certified security with a sleek satin nickel finish. Designed for easy DIY installation, it fits standard door sizes and features a keyless interior thumb turn for enhanced safety. Treated with Microban for cleaner surfaces and backed by a lifetime mechanical and finish warranty, this deadbolt combines trusted durability with modern design.

Specifications

Brand	Kwikset
Special Feature	Key Lock
Lock Type	Deadbolt
Item dimensions L x W x H	7.25 x 3.5 x 1.75 inches
Material	Nickel
Recommended Uses For Product	Security
Style	Modern
Color	Satin Nickel
Number of Pieces	1
Finish Type	Satin Nickel
Included Components	Unkeyed Deadbolt Lock
Controller Type	Mechanical knob
Shape	Round
Control Method	Touch
UPC	883351395229
Model Name	Kwikset 663 Deadbolt
Global Trade Identification Number	00883351395229
Manufacturer	Kwikset
Part Number	96630-065
Item Weight	7.8 ounces
Product Dimensions	7.25 x 3.5 x 1.75 inches
Item model number	96630-065
Is Discontinued By Manufacturer	No
Finish	Satin Nickel
Item Package Quantity	1
Special Features	Key Lock
Batteries Included?	No
Batteries Required?	No
Warranty Description	Lifetime mechanical and finish warranty

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