Sliding Patio Door Handle Set with Key Cylinder and Mortise Lock, Full Replacement Handle Lock Set Fits Door Thickness from 1-1/2" to 1-3/4", 3-15/16” Screw Hole Spacing, Reversible Design(Non-Handed)

Fit perfectly in my sliding patio door. Old lock would fail to lock properly and was insecure. Also, it could not be opened or locked from the outside. This one has a lock with a regular house type key.Easy to install. But after moving and changing locks quite a few times, I still cannot understand why the bolts that go thru the door are so hard to install. They have thread all the way to the end, and it is very hard to line them up with threaded hole in the other side, which you cannot see, and cannot feel with the square end of the boltAll it takes is a little shoulder on the end of the bolt, so you can feel when it is properly lined up with the threaded hole.Manufacturers take notice!!!

This handle/lock set fit my door well. I didn’t even have to change out the latch part. Once installed, it worked smoothly and has a sturdy feel to it. The installation does require some cutting of the flat, metal pieces that engage with the latch assembly. They are too long, likely to accommodate thicker doors so I’m sure it will need to be cut regardless of the type of door you have. I put the lever on one side and the lock set on the outside as they would be installed. Then I marked them both where they intersected in the middle. The idea is to cut them so they both engage the latch assembly. Cut them too short and one or both will not engage the latch assembly. Cut them too long and they will either not fully tighten down or will bind (or both) as they butt up against each other in the center.Once marked, I put them in a vice and cut with a dremel tool (as others have mentioned). If no dremel, a pair of clamping pliers and a hack saw will work too. It will be more of a challenge hold them while cutting though. Once cut to length, the rest is pretty simple. You may want to file off the burrs after cutting.It works great once installed. Key is smooth as is the latch engagement.I have been using it for a couple weeks now and no issues. I will update if anything changes.

So, I finally got this to fit on my Pella sliding glass door after about an hour and a half of work and fiddling with it. The directions are utter garbage, but the video included on this site is helpful. Make sure you watch it. You need to cut through the metal spindle of the thumb latch, as well as the metal spindle of the lock, because (as they say in the video) "The tail teeth on both sides must be in the lock cylinder at the same time to function." The tail teeth? Umm...it's called the spindle, bro, and that's what turns the latch mechanism. Anyway, the spindle for the keyed part is scored for "easy break off" but it's scored in the wrong place (at least for my sized door). Therefore, I had to cut it with the Dremel. I also had to cut the thumb latch spindle to the proper length. Don't mess up either one of these cuts or else your lock won't work. Also, lining up the screw holes is really difficult. I recommend partially inserting the screws before putting in the two spindles, and then drawing the bolt side latch component with pencil (on the door) so you know EXACTLY where it lines up. One more thing--if you don't have wide preset holes on the inside of the door, you will have to shave down the metal raised portions on door-facing part (underside) of the handle, otherwise your inside handle won't be flush against the door. If you shave these down, you need to use the shorter screws to attach to the locking mechanism. Don't forget to lube the entire thing up with 3 in One oil because it is as dry as a bone inside the latch and the lock. But hey, it works.

I was very surprised with this item that it fit my door.

Was very difficult to install. The instructions are terrible. Once it was completely installed it doesn't work well and have to be very specific with locking it, or else it will not latch properly.Edit: The wife was too kind. The instructions are garbage, the latch is unbelievably finicky, and the only reason we kept it was to avoid having to drive an hour to return it. I was able eventually make it function adequately.The latch side has no markings to assist for cutting, so you better have a cutting wheel or bolt cutters. The piece that attaches to the door frame itself must be positioned specifically in such a way (with no guides, instructions, or templates) so that the door mortise catches in a very narrow window. Too low or to one side, and the latch will retreat into itself without fully extending (unless you slide the door at the half locked position), too high and there is no point.The keyed portion of the latch must be aligned and tested separately, as the metal rotates independently of the cylinder. And if it is not lined up properly, the key will not be able to lock the door or be pulled out of the lock when in place.In order to combine the two pieces, you can use the screws that pass through the door. But to ensure you get the screws into the correct receiving hole....you have to pull the other handle away from the door enough to see that it will line up but not so far as to pull the metal tab/latch out on the key side. See note above on the key going out of alignment. Good luck.Finally, how does this have a 4 star review?? This product is getting complaints and reviews with 3s and 4s, but the attached reviews are horrible. People need to knock down their star count to match what they're saying, and maybe the overall product star count would match what their experience was.

Easy to install but the key was extremely hard to get insert and remove and the key ended up snapping.

Instead of cutting the bars, pound the one out of the handle switch. The bar extended for outside key spot will go through that slot and no cutting is needed. Maybe depends on door but worked for others and myself. Looks and works great. Very happy I tried it for the price.

Locking sliding door handle using a key! Every door should come standard with these.