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Security 660 Series Matte Black Single Cylinder Deadbolt ft. SmartKey Security

Ratings & Reviews for Kwikset Security 660 Series Matte Black Single Cylinder Deadbolt ft. SmartKey Security

4.6
531
Review
 4.6 out of 5
531 Reviews


91% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise the deadbolts for straightforward installation requiring only basic tools and taking under 10 minutes, with rekeying completed in seconds using an intuitive process. The solid construction, smooth operation, and ability to unify all home locks to a single key are consistently highlighted as standout benefits. Most reviewers commend the premium feel and reliable performance, with many declaring strong brand loyalty and plans for future purchases. A few report isolated issues with rekeying or installation on older doors, though most consider these exceptional cases. Overall, reviewers enthusiastically recommend the product.

Customer review summary generated by AI, including incentivized reviews.
531 Customer Reviews

Cheap and easy

Would Recommend

Cheap and easy. Straight forward installation.

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Cheap and easy

Would Recommend

Easy to install. Easy to rekey with my existing kwik set locks. It does feel a little cheap.

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Works well, easy install

Would Recommend

Easy to install, all the hardware i needed was included. Wasn't expensive. I was actually able to readjust the lock to match my existing key. Looks great on the house.

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horrible lock

Would Not Recommend

doesn't lock right had to install upside down because it was machined incorrectly. tried to get help from customer service and the manufacturer but was ignored after given reference number.

May 9, 2026
Verified Purchaser
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Response from Kwikset

Hello griffin,

Thank you for the feedback. We're sorry to hear that you had to install upside down. Please
Please know that the ...

KwiksetMay 12, 2026

kwikset

Quality

Would Recommend

Price

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Great product

Would Recommend

Easy to install

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Good for practice

Great for lockpicking practice. As home security, ok. Requires slightly unusual picking method.

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Fits and looks good.

Would Recommend

It fit as a replacement without any problems.

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Have matching door paint for touch ups

Would Recommend

Easy to install

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Easy

Would Recommend

Easy to use/change, looks good

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Historic Uses

Would Recommend

Worked great for my thin door to my 1796 home, I was able to rekey to my other kwikset door which makes this moms life so much easier!!!!

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Smart Lock! Literally!!

Would Recommend

I like that i can change the keys out from tenant to tenant. That way im sure nobody has a spare laying around amd can just walk right in.

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Dead bolt lock

Would Recommend

Easy to rekey

April 24, 2026
From Security 660 Series Satin Chrome Single Cylinder Deadbolt ft. SmartKey Security Verified Purchaser
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smart security

Would Recommend

Handy for rentals

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Highly recommend

Would Recommend

Looks great and it’s easy to install

April 23, 2026
Verified Purchaser
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