Prime-Line U 9862 Sliding Door Keyed Lock, Push-In – Replace Broken Parts and Add Additional Home Security, Painted Diecast Case, White Finish (Single Pack)

The quality is very good, unlike 3 other types of keyed window locks that I had in my house. Usually these types of window locks aren't well made - they get stuck, hard to get key out, hard to push latch in, thin metal. Not this Prime-Line lock. It's solidly built and all operations are smooth. It comes with two ways of mounting as shown in the picture. Each way had 2 pieces, so that the window can locked fully or at a partially open position, which is good for hot summer days. Installation tip: drill pilot holes before driving the screws in to avoid cracking the wood. Think about where glass is usually inserted into the wood to avoid drilling into glass and breaking it. There's sharp dimple at the tip of the bolt for marking the hole on the other side. Use the mark to position drill bit.

I attached this to the inside of an industrial outswinging metal door and metal frame. My dad has dementia so likes to wander at night. This lock is perfect since it pushes to lock and one quick turn of the key and it opens. Helps my mom feel secure and sleep better knowing he isn’t getting in harms way. I placed the main lock on the door then drilled an exact size hole as the sliding bolt right into the metal frame. Works brilliant.

I use this on the outside of my sliding glass door when not at home. Has been working flawlessly for me. Would need hammer, or crowbar to defeat this, but As with most locks, if someone really wants in this will not keep them out. Great deterrent though. Only thing I don’t like is no key needed to lock it, so I could easily leave key inside, locking myself out, just need to hide spare outside somewhere.

Not the easiest install, it takes a bit of skill with drilling holes and a chisel or carving knife to used the metal plate on a wooden window or door. I do like the metal insert for the drilled hole and the way the ateike plate is designed. Pretty decent little lock that ia pretty strong. It works very well once installed, very easy to operate. I installed 2 onto swing in or french casement windows that I made for a client. I am a renovation contractor and have done some high end work with top products and I would buy these again for the right job. No complaints. They do what they're supposed to do, they are inexpensive and not bad looking at all. Reccomended.

Perfect

Solid product works great for my needs.

I installed this on the inside of a wooden sliding door to my patio. So far so good. I had a very similar unit years ago. Not sure if this was from the same manufacture. The holes that I drilled for that unit, two in the door to hold lock, and one into the upper portion of the door jam to take the plunger, were perfectly positioned for this lock. After several years of limited use the metal case portion of the lock fell apart, very strange. May have been due to the sea air here at the beach. Remember, if this is a primary exit keep the key near the door when it is locked.

I bought 5 of these and one came damaged (the key didn't turn). The rest work fine. Obviously, these are not meant to be super safe, rather provide an additional protection to just using the basic window lock.