






🛡️ Lock in peace of mind with style and strength!
The Prime-Line U 11325 Door Reinforcement Lock is a high-security aluminum lock with a sleek brushed chrome finish, engineered to resist up to 800 lbs. of force. Designed for easy installation with included 3-inch hardened screws and a helpful video tutorial, it fits any swing-in door thickness. Its spring-loaded, tamper-resistant design enhances home safety by preventing forced entry, lock picking, and bumping, while also being child-safe when installed at higher levels. This lock offers an affordable, stylish upgrade to your home security setup.



























| ASIN | B06XD79NX3 |
| Additional Features | Weather Resistant |
| Best Sellers Rank | #8,351 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Door Lock Replacement Parts |
| Brand Name | PRIME-LINE |
| Color | Brushed Chrome |
| Control Method | Touch |
| Customer Reviews | 4.6 4.6 out of 5 stars (23,951) |
| Finish Types | Brushed |
| Global Trade Identification Number | 00049793113252 |
| Included Components | Reinforcement lock, fasteners |
| Item Dimensions | 1.5 x 3.81 x 6.44 inches |
| Item Type Name | Door Reinforcement Lock |
| Item Weight | 0.37 Pounds |
| Lock Type | Reinforcement Lock |
| Manufacturer | Prime-Line |
| Manufacturer Warranty Description | Warranty |
| Material Type | Aluminum |
| Model Number | U 11325 |
| Recommended Uses For Product | Home Security (Residential Doors) |
| Shape | shape |
| Style Name | Lock |
| UPC | 049793113252 |
| Unit Count | 1.0 Count |
S**H
High quality lock that is easy to install
This is a good looking, very sturdy metal door-stopping lock that works well and is available at a good price. The video provided on the product listing was a helpful, step by step tutorial, and made it easy for me to set up, once I found my drill and the appropriate bits. One thing I will say is if you have a tight fitting door, you may need to chisel away some of the molding to get the lock into the narrow space between the door and the frame. I didn’t have to, thankfully, and the door closes easily with it on, but keep that in mind. The metal material is thick, and after locking it, I was unable to open the door, no matter how hard I tried, which is a nice sense of security to have. It also looks nicer than the ball-and-chain type locks you see in hotels, which I was considering getting until I decided on this one. I’m about to get another one for my garage door as well. Very satisfied!
S**N
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!
B**N
Great Lock For Added Protection
I live in a neighborhood where home invasions are frequent so i needed to think about what am i going to do to keep my family safe. I am a security conscious person. The first thing i think about is security in any situation i am in. This reinforced door lock is not only a simple device it's easy to install. I've seen a lot of people put this lock on the top part of their door and I can tell you putting it on top doesn't offer much security if an intruder tries to kick down your door. The middle of the door is the center of where force is met when someone kicks in your door. If you put this lock on top of your door the pressure from the blows to the door will put more pressure to the top area and snap the bottom portion of your door. The force of the blow is in the middle and that's where the lock should be to take the blows. How do i know? because I experimented on two doors using this lock. I placed one on top of my door were I see people putting it and i put one in the middle of the door. I found that the lock adsorbed the blows when the reinforced lock was put in the middle. We kicked the door down as hard as we could, we hit it with a sludge hammer, and also used a crow bar and it did not budge. When we put the lock on top we found that the door frame broke off and the door snapped because the pressure of the kicks and sludge hammer had snapped the door in half breaking the bottom part of the door. It all has to do with physics. This lock is well constructed and easy to open and close. I will say this. It's good to oil up the lock hinge from time to time to avoid friction which will occur over time. Also use concrete screws when drilling these onto the door frame. The screws that come with this are cheap and will break off if anyone dares to kick your door down. Overall this is an easy to install lock and well worth the money. I feel safe at night knowing nobody can break down my door even if they tried. This if placed right will withstand 500 and more lbs of pressure. SIDE NOTE: For extra added protection you should combine this with a metal door strike plate (as seen in photo). This makes it harder for people to break down your door and reinforces your door frame. Overall great solid buy and a must have to secure your home.
T**Y
Good addition.
Just installed this lock on the front door. I don't know what the problems other people have had with the screws, mine went right in with no problem. I just used a drill bit a little longer than the screws as a pilot hole. Put a drop of Dawn dish soap on the threads as a lubricant and it also helps keep the wood from splintering. Then used the right sized drive bit for the screw head and then used my drill and slowly and with good pressure screwed the screws right in. Easy Peasy. I have since installed 2 of these per door (3 doors) If 1 is good then 2 must be better right? I put 1 above the dead bolt and one below the door handle. Hopefully they work as advertised if ever needed. I think they will.
W**E
Solid Security Lock, but Screws Could Be Better
We recently installed the Prime-Line U 10827 Door Reinforcement Lock, and overall, it’s a great addition for extra home security. The lock itself feels sturdy and well-made, providing a real sense of reinforcement against forced entry. Installation was straightforward, and the design is clean and unobtrusive. That said, the included screws aren’t the best quality — they strip easily, so it’s worth using your own stronger screws for a more secure fit. Once installed properly, though, the lock works exactly as advertised and adds valuable peace of mind.
P**L
Originally I had watched a Facebook video my girlfriend had sent me about this new security product and i thought this has got to have a catch or be phony.... So what could $22 bucks hurt spending it to try this out so i bought it and the only thing i didnt not like is i got uline instead of prime-line not a big deal theyre all the same. I installed it shortly after recieveing it with my impact driver with the 3"inch screws supplied and then i got my girlfriend to lock it so that i could test its strength, i am 200+lbs 5"8 heavy frame 56% muscle fairly good shape and my cousin who is 5"10 about 200 we both hip checked as well as tried 10+ times to boot the door in with just that no lockes engaged and shoulder check it... Result im pretty sure that even if u have a good new solid house your hinges would give out before this thing will -Great buy -Good value -Super Strong ( no to brag but ive ripped exterior doors on a new house off by accident and this held up to me) -800LBS to bust it -Quality product -Easy installation(you will need an impact driver for this) All in all a great purchase & have reccomended this to my friends and family.
N**U
Useful
R**A
This is a great lock, it is not bulky, and does not take much space, but it goes on so securely. makes you feel much safer. really good buy.
S**S
This is the second Defender Door Blocker we bought,very strong ,virtually impossible to break open the lock from outside,easy to install,screws comes along with the pack.As this gives additional security for the door,its highly recommended,moreover there is no need to drill any holes on the door for installing this blocker as this is fitted to the door frame.Very good product.
F**O
Sencillo, efectivo, facil instalacion. Muy recomendado!
Trustpilot
1 week ago
1 month ago