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Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
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Description
Kwikset 665 Deadbolt - Keyed Both Sides - featuring SmartKeyFeatures 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 on both sides Comes with 2 keys Deadbolt Latch has round corner faceplate ANSI BHMA grade 3 certified Latch has
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 on both sides
- Comes with 2 keys
- Deadbolt Latch has round corner faceplate
- ANSI/BHMA grade 3 certified
- Latch has adjustable backset 2-3/8" to 2-3/4" to fit all standard door preparations
- Includes round deadbolt strike
- 1 inch deadbolt throw
- Easily installs in minutes with just a screwdriver
- Lifetime mechanical and finish warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 4
Floss leaves mouth super clean!
I’ve been really irritated by tooth paste co’s dental floss products either being too small/not lasting very long or too waxy/sticky, too minty so I searched for better dental floss and found it with BURST CHARCOAL FLOSS! The floss is black/coated by charcoal and has a smooth non sticky feel to it with a nice subtle mint flavor. Putting the bobbin in the refillable container (another plus reusing container) was slightly tricky because it doesn’t pop off easily and instructions were somewhat vague. After watching a Burst video on YouTube, you turn the container upside down & squeeze the edges w/ tabs & it pops off. The bobbin that came with the kit looks smaller than the pix, we’ll see how long it last. Actual flossing was great, the floss really flattens or expands as it’s pulled between teeth. The floss being black shows and cleans even more gunk from between teeth/gums leaving mouth fresh and super clean. It’s exactly what I was looking for, I highly recommend this product. Only drawback is the smallish size of initial bobbin, took one off star but that can be remedied by Burst co, should more ppl agree & comment. Happy flossing!
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Reviewed in the United States on April 26, 2021
★★★★★ 5
I love this case. It’s functional and very pretty.
I found out that the dental floss I’d been using for years is coated in PFAS and other forever chemicals, so I switched to brand that didn’t have any of that. The obvious upside is that I don’t have to worry about those chemicals anymore and get great expanding floss, but the floss comes in a paper case. That case is functional, but I floss and brush a few times a day so I knew that I wanted something that was more durable. I saw this case and fell in love when I saw it and after a couple months of using it, I’m still in love with it.
It’s easy to refill, durable and so pretty. Overall just frustration free. It adds a special touch to my flossing routine and elevates that experience for me. The floss that comes with it is great too. It was my first time using charcoal floss and I liked it.
I kind of wish they offered the case in a variety of colors as a standalone item, so I can chose my own floss (or a mix to try out the different flavors), but that’s not a big deal and for take away from anything.
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Reviewed in the United States on January 13, 2024
★★★★★ 5
A better floss
The wife loves this. It does remove more plaque than other floss. Its woven so it appears to grab more gunk and plaque. It is also thicker so it fits tighter between the teeth. Good product and worth the $. Would recommend.
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Reviewed in the United States on August 3, 2025
★★★★★ 3
Floss itself is great, dispensing unit is a pain
I like the floss, as it’s relatively thick and has a tacky feel that I assume helps remove material on the tooth.
But man, did they over engineer their floss dispenser. Have to simultaneously pinch two small recessed levers to pop open the case which is nigh impossible if you bite your nails. Then have to remove an inside cover, then thread floss, then carefully snap it all back. It’s so intricate that you have to download a PDF via QRG to understand it.
Compare to Dr Tungs floss where the dispenser is cardboard and you’re good to go after folding one flap.
Continued use will depend on whether my wife can use her nails to operate the dispenser unit to refill.
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Reviewed in the United States on May 25, 2024
★★★★★ 5
It’s gentle on my gums
My favorite have been using this for years. Highly recommend. The experience is amazing
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Reviewed in the United States on May 13, 2026
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