Kwikset 660 Single Cylinder Deadbolt Keyed One Side - featuring SmartKey

Kwikset 660 Single Cylinder Deadbolt Keyed One Side - featuring SmartKey

Marsoni

M251S

$21.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Kwikset 660 Single Cylinder Deadbolt Keyed One Side - featuring SmartKeyFunction: Keyed One Side Features For use on exterior doors where keyed entry and security is needed Featuring SmartKey Security, which protects against advanced break in techniques and allows you to re key your lock yourself in seconds. SmartKey Security re key technology is compatible with Kwikset (KW1) keyway or (SC1) keyway options Deadbolt operated by key outside and thumb turn inside Comes with 2 keys Deadbolt Latch has round corner faceplate

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For the inexpensive price it’s worth its weight in gold. I admittedly probably didn’t work on it as long or as hard as I should have, but I still had great results. *** One warning: when it says to “tape up and cover your paint around it” do it! I figured I would just be careful but no I was wrong. It will REALLY damage your paint, so make sure you don’t get any on it. YES- This is the sanding discs too! They have chemicals on them, they are not regular discs. If you do get on paint, clean immediately! My only regret with this project and my fault, not theirs. My headlights went from dingy yellow, to much brighter and definitely more clear. Love the results. Very happy with the purchase.

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Reviewed in the United States on May 4, 2026

Verified Purchase

Kamau Kalai

Louisville, US

★★★★★ 5

Great for the price

Size: 1 Kit, Size: 1 Kit

Worked great at clearing my headlights and at a great price, I had used a different headlight kit maybe 5-6 months before and it did not perform as good as this kit did, maybe it was a user error with the previous kit but this one cleared it easily and was very easy to do and had a nice clear shine.

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Reviewed in the United States on April 23, 2026

Verified Purchase

Dre

Alexandria, US

★★★★★ 5

Good stuff!

Size: 1 Kit

Good product, made a big difference. Easy to apply, Will buy again when needed.

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Reviewed in the United States on May 12, 2026