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PRIME-LINE

Defender Security U 10827 Door Reinforcement Lock – Add Extra, High Security to your Home and Prevent Unauthorized Entry – 3 In. Stop, Aluminum Construction, Satin Nickel (Single Pack)

    • Based on 18,761 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Nov 17
Order within 8 hours and 23 minutes
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Features

  • EASY INSTALLATION The included 3 inch hardened screws make installation a breeze extra security and peace of mind can be achieved in just minutes. Watch the video on this page for installation tips and operating instructions.
  • ADDITIONAL HOME SECURITY Use this high security door reinforcement lock for additional home security on any swing-in door of any thickness. It helps to ensure any door cannot be opened from the outside.
  • CHILD-SAFE AND TAMPER-RESISTANT The spring-loaded design can be installed at a higher level, to ensure it is child-safe. Plus, while locked, this tamper-resistant door latch protects against the door being kicked in, lock picking and bumping.
  • PRE-DRILLING The included 3 inch security screws require holes to be pre-drilled with 1/8 inch drill bit. Do not use a drill driver with max torque setting to install the 3 inch screws as you can strip or break the heads. Some doors may require mortising. Additional mortising may be required to fit your door.
  • NOTE - You may wish to purchase the MP108278 high security finger pull, designed to make opening this lock easier

Description

Add an extra layer of security to your home with this Defender Security Door Reinforcement Lock. Designed to withstand 800 lbs. of force, you can rest easy knowing your family is safe and protected! This reinforcement lock has a spring-loaded design, aluminum construction and a satin nickel anodized finish. This reinforcement lock can be quickly and easily installed on any swing-in door of any thickness, and can help ensure the door cannot be opened from the outside by being kicked inch Additionally, it’s tamper-resistant, so it can protect against lock picking and bumping. Plus, it’s child-safe, because you can install it higher on a door, where your young ones can’t reach. Length is 2 to 0.19 inch. Width is 1 to 0.38 inch. Installation takes minutes, and the U 10827 door reinforcement lock comes with 3 inch hardened screws. Extra home security and peace of mind are well within reach, and doesn’t have to come with the high price tag of an alarm system! This high security door lock meets the Texas building code requirements. Be sure to view the manufacturer’s How-To Installation Video also linked to this page, in the upper left-hand corner. From the Manufacturer This entry door stop is constructed from aluminum and comes finished in satin nickel. It protects against unauthorized entry by preventing lock bumping and lock picking while in locked position. Fits any size door and has a child-safe design.


Brand: PRIME-LINE


Mounting Type: Door Mount


Material: Aluminum


Color: Satin Nickel


Style: Lock


Item Dimensions LxWxH: 2.5 x 1.38 x 3 inches


Finish Type: Satin Nickel


Number of Pieces: 1


Manufacturer: ‎Prime-Line Products


Part Number: ‎U 10827


Item Weight: ‎5.9 ounces


Product Dimensions: ‎2.5 x 1.38 x 3 inches


Country of Origin: ‎China


Item model number: ‎U 10827


Is Discontinued By Manufacturer: ‎No


Size: ‎3 in.


Color: ‎Satin Nickel


Style: ‎Lock


Finish: ‎Satin Nickel


Material: ‎Aluminum


Item Package Quantity: ‎1


Number Of Pieces: ‎1


Mounting Type: ‎Door Mount


Included Components: ‎1 door lock


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎1 year limited


Domestic Shipping: Item can be shipped within U.S.


Date First Available: May 24, 2013


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Enhance Home Security and Prevent Unauthorized Entry!
As a homeowner who prioritizes the safety and security of my family, the Defender Security U 10827 Door Reinforcement Lock has become an essential addition to my home, providing an extra layer of protection against unauthorized entry. The first thing that impresses me is the sturdy aluminum construction of this door reinforcement lock. It offers robust durability and strength, ensuring that my door is fortified against forced entry attempts. The 3-inch stop is a standout feature of the Defender Security U 10827 Lock. It effectively prevents the door from opening beyond a certain point, making it challenging for potential intruders to breach. One significant advantage of this door reinforcement lock is its easy installation. It fits most standard doors, and the installation process is straightforward, requiring only basic tools. The satin nickel finish adds an elegant touch to the lock, complementing my door's aesthetics while providing reliable security. In conclusion, the Defender Security U 10827 Door Reinforcement Lock is more than just a lock; it's a high-security solution for protecting my home and preventing unauthorized entry. With its aluminum construction, 3-inch stop, easy installation, and stylish satin nickel finish, this door reinforcement lock has become a critical component of my home security system. For homeowners seeking peace of mind and enhanced security, the Defender Security U 10827 Door Reinforcement Lock is a top-notch choice. Safeguard your home and loved ones with confidence, thanks to the Defender Security U 10827 Door Reinforcement Lock! ... show more
Reviewed in the United States on August 7, 2023 by Steven
    • Excellent low-cost, low-effort home security tool
I recommend this lock to everyone. There are many ways to make your home more secure without spending much money and this is one of my favorite. It's extremely well made and even looks kind of elegant. It is quite easy to use, but honestly it could be easier. I wish they had added a grip or loop of some kind to make it easier to unlock. My concern is that someone unfamiliar with it would be trapped inside during a fire. Occasionally it will get bumped out of position when it's unlocked, so when we try to shut the door, the lock is in the way and the door bounces off of it which is startling (and could feasibly damage the door). For installation, you do need self-drilling screws and a powerful driver of some kind, which could be expensive if you don't have the driver already, or you can use a less powerful drill with a very long drill bit, and those bits can be expensive and hard to find. This type of hardware kit should always come with a drill bit. If you have a door that doesn't fit well in the frame, you may have trouble placing this lock. The bottom half of our door has a huge gap, and this lock doesn't have a ton of overlap even on doors that are hung correctly. There are a lot of YouTube videos showing how to fix the gap in a door. Usually you just need to bend or shim the hinge. Most burglaries happen due to people leaving windows and doors unlocked. The burglar just walks right in. Beyond that, they kick in doors, or use the items in your yard (ladder, trellis, large rock, hide-a-key, etc.) to break into your house. Most front doors on most houses and apartments are installed with very short screws that only go into the door trim, not the heavy frame. If your door is kicked in, it's not usually the door or the lock that fails; the strikeplate just gets blown right out of the door trim. So almost anyone can kick your front door in--it doesn't take a lot of strength or skill. If you replace the screws in your strike plate and hinges with 3-inch or longer screws, the door will be attached to the studs in the wall and will be vastly more difficult to kick in. It will take so long and be so loud that the burglar will likely move on, not wanting to attract any attention. This kind of lock adds another layer to that, and gives you more time to react. Even if someone bumps your locks, they won't be able to open the door. This also keeps out uninvited landlords and maintenance workers. :) Summary of some simple/affordable security actions and ideas: * if someone wants in, they'll probably get in; the goal with security tools is to slow them down and get your attention, so you have enough warning to call for help and hide or prepare to defend yourself, or more ideally, to make breaking in so time-consuming and noisy that a potential burglar has to give up and move on * burglars may use anything around your home to break or climb in, so try to minimize the tools you give them * replace door screws with 3"+ screws * replace strikeplate with security strikeplate * add door reinforcers (metal plates that protect doorknob and deadbolt from kick-ins) * put battery-powered alarms on your windows and doors (you can even get alarms that detect your window being broken) * add screw-on locks or put a charlie bar/1" doweling in your sliding door and window tracks * if your sliding windows and sliding doors can be lifted up and out while they're closed, drive a screw into the upper track to prevent it (google this if you aren't sure) * don't leave boxes for things like giant flatscreen TVs in your curbside recycling, and don't leave your address on similar attention-getting packaging that you're dropping off at a recycling center * don't keep desirable-to-burglars possessions where they're visible to passersby * have some means of protecting yourself in case someone does get in (gel pepper spray is a good place to start looking) I don't believe in being paranoid or lowering your quality of life for "security," especially since the risk of a home invasion is so relatively low. However, we moved into a place that had already had both doors kicked in and I needed to take action to avoid anxiety about it, without going overboard or spending a ton of money. I think these tips are a good compromise, especially since they require so little money. Since I know anyone breaking in will have to make a lot of noise (and if they get in, I'll be waiting), I feel less anxious. I used to worry that someone could already be in the house and I wouldn't even know it. Now I have a bunch of passive systems in place, and a big dog :), so I feel a lot better. ... show more
Reviewed in the United States on October 29, 2019 by wild animals
    • Easy to install
Saw this lock on TikTock and thought it would be an easy solution to one of my older and rarely used external doors that has no lock (we have been using a security bar to keep it "locked"). Not only did this lock fit easily with no cutting required, but it was super easy to install. Marked where I wanted it, drilled 4 pilot holes, then used the provided screws to secure it, and DONE. Not only was it easy to install but the screws that came with it were actual long screws that make all the difference in a lock mechanism. Not like those little bitty screw that usually come with deadbolts. These were 2 or 3 inches long (can't remember now). I highly recommend this lock for any doors that don't have deadbolts. ... show more
Reviewed in the United States on July 10, 2023 by Benjamin Sutton

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