Price: $5.19 - $3.52
(as of Feb 16, 2025 18:13:22 UTC – Details)
This is an extruded aluminum lock with steel thumbscrew used on metal horizontal sliding windows. Allows you to lock window in the closed or ventilating position. It can fit up to a 1/8 inch wide rail. Comes in a natural aluminum finish.
WINDOW LOCK – Use this lock to secure metal horizontal sliding windows in a closed or ventilating position
SECURE – The thumb turn screw of this sliding window lock secures the lock in place
INSTALLATION – Easily install this secondary lock with no tools required
DIMENSIONS – The secure lock has a natural finish and can fit up to a 1/8 inch wide rail
NOTE – Please refer to the line art drawing for dimensions and compare with your needs before purchasing
Customers say
Customers find the lock useful and easy to install. They appreciate its security, build quality, and value for money. However, some customers find it too narrow to fit their windows properly.
AI-generated from the text of customer reviews
thingamajiggly –
Inexpensive and easy to use!
I don’t know what more I can add than that! I purchased these because there have been some break-ins in our area lately. I thought about getting a yardstick or a ruler or something to block the window from opening, but these were honestly the cheapest and easiest solution. They work perfectly, and now we have peace of mind. Even if I did buy a ruler or a yardstick or a dowel, it would have been significantly more expensive. Can’t beat that price!
Rose –
I feel better the windows are secure
The Prime-Line U 9819 Sliding Window Security Lock is a simple yet effective solution for securing sliding windows. I’ve installed these on several windows in my home, and they provide an added layer of security without the need for complicated hardware.Pros:Easy to install: Installation is straightforward and requires no tools. You just tighten the screw by hand to secure the lock in place.Sturdy and secure: Once in place, these locks hold firmly and prevent the window from being opened. It’s a great deterrent for intruders.Adjustable fit: The lock fits most standard sliding windows, whether aluminum or vinyl frames, making it versatile for different window types.Compact design: The small size of the lock means it doesn’t interfere with the appearance of the window or obstruct the view.Cons:Requires manual adjustment: You need to manually loosen and tighten the lock each time you want to open or close the window, which might be inconvenient for some.Overall, the Prime-Line U 9819 Sliding Window Security Lock is a great, budget-friendly option to increase window security. It’s durable, easy to use, and provides peace of mind knowing that your windows are more secure. Highly recommend it!
Rachel montealegre –
Works awesome.
Well I use these in my bus window to keep the window snug on my ac hose and they are very secure.
V –
Well made.
Well made. Turn pad could be a little bigger.
Daniel B Abrahams –
Easy to set up and works well.
It works.
Franky –
Well Made
I admit I was skeptical when I first saw them, but they lock the window into place. Once you put them on they are not coming off until you take them off.
leisha reneau –
Not wide enough
Unless the metal on your window is extremely thin… don’t buy these. That’s a nickel leaning against the window. I’m thinking these will work well on older homes with very thin window panes. I had to hammer it on and it doesn’t seem secure.Disappointed😞
KMS –
Works great
These completely solved my problem of broken latch type lock on bedroom windows. Very inexpensive fix. Secures tightly to the bottom. Easy to reach over table in the way of window and tighten or loosen. Can put along the side anywhere, if you want to crack the window a bit. I even tested in on my sliding glass door; it fit well there also. Again, if you just want to crack the door. Simple solution to prevent windows from opening. Some of my windows open side to side; others slide up/down. Worked on both types.
Chegou super rápido e em perfeito estado. Muito bem embrulhado! Recomendadíssimo! –
Muito bom produto. Trava realmente, apenas lixeiro a ponta do parafuso para não marcar a janela.
Oralia Donis –
Estuve buscando una solución para asegurar las ventanas pues vivo en un quinto piso y tengo niños y gatos en casa, estos seguros fueron nuestra salvación. Cumplen perfectamente su función y son muy fáciles de instalar.
D. Langston –
Be careful ordering this product. The opening along which one is meant to insert the device onto the ridge of the window is far to small for my windows. I would like to return these please.
Letícia –
Gostei muito.
The A Lopez –
Tenía mis dudas pero funcionan muy bien, ojo, no es para todas las puertas/ventanas, pero funcionan a la perfección.