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🔐 Secure your sanctuary with style and strength!
The Prime-Line U 9847 Patio Sliding Door Loop Lock is a heavy-duty, weather-resistant secondary lock designed to enhance sliding door security and child safety. Featuring a 2-1/8 inch hardened steel locking bar with a diecast, chrome-plated base, it offers durable protection against unauthorized entry. Easy to install with included hardware, this lock is perfect for professionals seeking a reliable, sleek security upgrade for their home or office sliding doors.




























| ASIN | B004AHVA5S |
| Additional Features | Weather Resistant |
| Best Sellers Rank | #21,338 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #25 in Door Lock Replacement Parts |
| Brand | PRIME-LINE |
| Brand Name | PRIME-LINE |
| Color | Chrome |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.6 out of 5 stars 8,668 Reviews |
| Finish Types | Satin Nickel |
| Global Trade Identification Number | 00049793098474 |
| Included Components | lock, keeper and fasteners |
| Item Dimensions | 0.63 x 3.13 x 4.56 inches |
| Item Type Name | Loop lock |
| Item Weight | 136 g |
| Item dimensions L x W x H | 0.63 x 3.13 x 4.56 inches |
| Lock Type | Loop lock |
| Manufacturer | Prime-Line Products (Home Improvement) |
| Manufacturer Part Number | U 9847 |
| Manufacturer Warranty Description | Goods are warranted against manufacturing defects for 1 year. |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Name | Sliding Door Loop Lock |
| Model Number | U 9847 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Recommended Uses For Product | Door |
| Shape | Rectangular Prism |
| Special Feature | Weather Resistant |
| Style Name | Sliding Door |
| UPC | 049793098474 |
| Unit Count | 1 Count |
D**3
Great for ANY door!!
I’m using this on my storm door as extra reinforcement so my special needs teenager can’t wear down the handle lock or push the door open and run out (like he did on my mother’s door, and so outsiders can’t rip the door open and get in. This is very strong, easy to install and easy to use. I’m 50, female, and it took me less than 10 minutes to get my drill and install this lock. I marked the holes on the frame with a pen, pre-drilled the holes with a drill bit and then drilled the screws in. It’s very secure in both the frame and the door, and I’m very happy with this product! I was not compensated in any way for my review.
L**E
GREAT quality, great product
PROS: -got here fast -very high quality -works on in-swing AND OUT-SWING doors CONS: -install is a little tricky if you want the latch to drop in smoothly -screw that come with it are not what you need to properly secure this to the door and frame EXPLANATIONS: I would definitely buy these again. My landlord refused to install deadbolts so I installed these because my front door is in-swing and my back door is out-swing. I wanted something to match but that would also be study like a deadbolt. The key is getting better screws. The screws that came with the prouct are size 6 (diameter) and are one inch long. I was looking for home security, so I got the longest screws I could find based on the width of the frame and the door. In the video, I am putting my whole body wight into opening the door (25F, 210 lbs) and NOTHING. I feel so safe in my house now :) Side note: youre supposed to use size 6 screws but you can use size 8, its just more finicky because they BARELY fit.
C**W
Makes us feel safer with our pool
We have a backyard pool and have ugly alarms on the doors that we had to install when we had our pool built years ago. We stayed at a Ritz Carlton a few years ago and they had locks similar to these on the slider doors. We really like these. They looked a LOT better than the ugly alarm and we have ours installed at the top of the door so the little kids can't reach them. I am removing the ugly alarms. We just bought another one of these recently for another door. Easy to install too!!!
P**P
Still Decent
Not like how they use to make them in terms of metal thickness but still gets the job done!
J**.
Great, easy to use safety lock
Nice easy to use safety lock. I used them on my enclosed trailer cabinets to keep them from popping open when in transit. They fit different applications, A+++
K**A
Great lock for sliding doors
I have three (3) sliding doors in my house. They are all 26 years old now and two of the mechanical locks no longer hold. For years I had been putting a wooden block or PVC pipe between the slider and the frame. Finally got tired of bending down every night and morning to put the block in or take it out. Bought one of these stainless locks for the upstairs door. It worked so much better I got another one a few weeks later for the downstairs door. All hardware is included and a snap to install at any height you want.
W**R
The extra measure you need
Aside from the tool criminals use to gently shatter your whole glass, this little lock gives you that extra minute to go grab a defensive tool after they crowbar the latch lock open. Our house is like Fort Knox except for a stick in the sliding door, which isn't "always in" due to bending over etc. Not the most decorative piece but we put it higher up. You can put this anywhere, even on a molding frame that isn't flat, just use longer nails for stability.
R**8
Unique security lock
I needed a bit more extra security on my sliding door on my patio at home as it has just a simple door lock on it and a swing out bar to keep the door from being opened. So, I beefed up that swing down bar with a large pin to keep it from being jimmied or pried open and installed this sliding door loop lock unit on my rear sliding door. Pretty easy to install, took me maybe 10 minutes to drill the holes once I penciled in where to drill the holes and after that, I installed the 2 pieces [1 piece right on the sliding door itself & the other piece on the sliding door frame around the sliding door and overall, very easy to install and it works good! I feel a bit more secured with that lock being used and I use it all the time in addition to the lockable swing down door bar and regular sliding door lock now. Easy 5 star rating on this worthwhile item.
K**A
Loved the producr
Loved the product. Suitable for my unique reqirement
G**Z
Well Designed For - Its Job
Well designed for -The Job.
G**L
Muy buena cerradura
Muy buena cerradura de material muy solido
D**X
Seguro para puerta sencillo y funcional
Este seguro si lo hubiese conocido antes me hubiera ahorrado muchos corajes. Hubiese servido para proteger mi casa, debido a que hubiera servido para asegurar una puerta corrediza que da al patio, por donde se metieron a robar a mi casa, pienso yo que con este artículo no hubiera podido o hubiera batallado en abrir la puerta, pero en fin... Un seguro sencillo y funcional el cual recomiendo mucho, porque por obvias razones no se alcanza a ver por el vidrio si se sabe colocar en un lugar que no sea tan fácil encontrar, no es tan pequeño. El material con el que esta elaborado se ve resistente. Instalarlo es muy fácil, es solo cuestión de que se coloque todo el seguro y se puntee por donde se va a taladrar o insertar los tornillos. Cabe mencionar que la seguridad y tranquilidad no tienen precio. En resumen: seguro sencillo y funcional.
T**R
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Trustpilot
2 weeks ago
2 weeks ago