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National Hardware N178-806 V1308 Universal Knob Latch in Black

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$20.70

$ 9 .99 $9.99

In Stock

1.Color:Silver


About this item

  • National Hardware's 1-1/2,1-3/4,3" Black Universal Knob Latch is designed for wood or metal screen and storm doors with either 1-1/2, 1-3/4, or 3 inch hole spacing.
  • Manufactured from zinc die-cast for durability.
  • Mounting screws included for easy installation.
  • For interior and exterior applications
  • Fits wood doors from 5/8" to 1-3/8” thick
  • Includes spring loaded strike plate


Product Description

This knob latch is designed for wood or metal screen and storm doors from 5/8” – 1-3/8” thick, with either 1-1/2-Inch, 1-3/4-Inch or 3-Inch hole spacing. The dual locking design with exterior key lock and separate interior locking mechanism provides enhanced security. Includes a spring loaded strike plate and mounting screws designed to match the product finish.

From the Manufacturer

This knob latch is designed for wood or metal screen and storm doors with either 1-1/2-Inch, 1-3/4-Inch or 3-Inch hole spacing.


Richard L. White
Reviewed in the United States on April 28, 2024
This is a well designed and finished storm door replacement handle. I bought mine in black. It fits a variety of door thicknesses, from 5/8" to 1 3/8". If your door is thinner than 1", the internal spindle and shaft will have to be cut down. Therein lies the problem.The instructions imply the use of a hacksaw, which is what I used. But, a clamp or vise will be needed to hold the parts steady. The hacksaw will require a fine tooth blade and is oversized for the job. Other reviewers have used a Dremel tool to do the job with success. In my opinion, the manufacturer should just include an extra short set in the package. That will increase the price slightly, but will eliminate much customer frustration.My set came with a defective machine screw. The included pair of machine screws hold the inside and outside knob and handle together. A gob of metal was stamped into the head of one of the dual Slotted/Phillips screw heads, rendering it useless. Out came the vise and hacksaw again, and I was able to cut a slot into the head and install it. A not-very-good-looking solution.Others have complained of breakage after tightening. I had no problems there, but recognize that these parts are not made to be cranked down super tight. Just snugging the screws tight should hold without problems.Once installed, the handle is quite nice. A drop of oil on the moving parts has made this the smoothest unit I have installed yet, and I've done many over the years. This should be a five star rating. The additional work and bad screw bring my rating down.
Alisha
Reviewed in the United States on July 11, 2023
We purchased this for our houseboat. The ones that were on the front and back doors were very old. Found the original packaging and actually found these exact replacement on Amazon. We had it delivered to the marina and installed. Great product. Will definitely order again. EXACT REPLACEMENT.
B
Reviewed in the United States on September 17, 2021
After installimg this screen door handle, the door was opened/closed about five time while I adjusted the catch location. After walking away, the door sat unopened for about an hour until I heard a loud bang from the other room that sounded like a rock had hit my aluminum screen door. I went to check, figuring maybe a neighbor's lawnmower had thrown a rock, and found that the upper mount of the new door handle was detached. After uninstalling the handle and investigating it was clear that the boss (part the bolt threads into) had snapped off. That was the bang I heard. The door hadn't even been used once since the install and it broke. I won't bore you with the details but I was able to make some modifications to it and get it reattached with a better bolt. Once again the door sat unopened for about an hour and suddenly I heard the bang again. You guessed it... the other boss snapped off! Once again I performed my repair with a better bolt and have had no further issues with the mounting hardware. I do have to add that I have not had the new handle nstalled more than a few months and it is already getting worn out to where the handles themselves are starting to get wobbly when turned. The original handle that came with the door had worked flawlessly since the door was installed sometime back in the 70's and I only replaced it because the spring in it had finally given up after 40-50 years. Go figure. Looks like I will soon be replacing the door handle again, and I can assure you it will NOT be another one of these.
DEAN L. PERKINS
Reviewed in Canada on October 6, 2021
Screen handle
Granny Franny
Reviewed in the United States on October 6, 2020
I have bought 3 white ones and they Las at least couple of years. But I bought the gray we had it on 2 weeks and the inside handle broke and fell off. Not sure if there is a different but I bought the gray because the Amazon was out of stock with white so the one I bought for front door I use to replace gray on back. I got faith in the White one.
Alexandria Johnson
Reviewed in Canada on October 27, 2020
Works great, easy to install. Instructions weren’t the easiest to read but once I figured it out it was a breeze. Love that it has a lock.
cengland0
Reviewed in the United States on July 22, 2013
The first one I bought I could not get to lock at all so I returned it. When I received the replacement, I had the same problem with the new one so I knew I was doing something wrong -- it was my fault and I suspect the first one was not defective like I originally thought. So in case you buy one of these, I will give you a couple pointers that I figured out that were not in the instructions. The only instructions you get is what's written on the back of the cardboard package and it has several images telling you what each part is named but not how it is assembled.The external knob rotates regardless if it is in the locked or unlocked position. This seems awkward compared to a regular door knob. I'm used to trying to turn the knob and it will not rotate when it is locked and this is not how this one works. Of course when it is locked, you can turn the knob but still not open the door because it will not turn the handle on the inside of the door.First thing to note is that you cannot lock it with the key. On the inside door, there is a small latch that you slide up and down to lock and unlock the door. I even thought this part was defective but it wasn't. It seemed the latch would not move and was completely stuck. What was not said is that you must move the inside handle so it is completely in the middle (I call that the home position) and then the latch will move up and down. This is obvious once you assemble it because springs from the knob portion return it to that position by default but if you're playing with it before final assembly, it's not so obvious. So if your door is unlocked and closed and you wish to lock it. The only option is to open the door, slide the latch to the locked position and then close the door.To unlock, you insert the key and turn it 90 degrees and return to the home position and remove the key. This will cause the system to move the latch to the unlocked position. Now you can rotate the knob and it will connect with the inside handle and then you can open the door.You need three holes in your door. Two are used for screws that go all the way from the inside part to the outside part and the center hole that is used to connect the outside knob to the inside handle. The screw holes are made to be one of two specific distances apart. I'm not sure of the exact distance because I was replacing an older defective unit so the holes were already there. The screws go from the inside handle part to the outside knob so you will not see the screws or have access to them when the door is closed (from the outside anyway). However, the screws will not automatically thread into the knob hardware. This is supplied with some inserts that you have to put into pre-set holes that are at standard distances. There are four holes and you use two of those four holes depending on how far your screw holes are. Use pliers to screw in those inserts that match the distance of your holes. Select the proper locations to put those inserts into.The assembly was a bit confusing. There were two different shafts that slide into the knob but I didn't know, at first, how to use them. It seemed to work just fine with just one of those shafts -- the hollow one. The door handle turns and it will also turn the inside handle so it works with just the one. However, if you lock the door, you will not be able to unlock it with the key unless you also use the second shaft. It slips iside the hollow one and then both go through the center hole and into the round knob. The center shaft goes deeper into the knob than the outer one. The center shaft is the one that turns with the key and the outer shaft is the one that turns when you rotate the knob.The final problem that I encountered is that the thickness of the door is very important. Apparently mine is too thin so I couldn't tighten the screws all the way. If I do, there is too much pressure applied to the shafts that goes between the inside and outside parts and that makes the knob and latch difficult to rotate. Even if you were successful in applying enough pressure to turn them, the spring to make them return back to the home location is not strong enough. So I keep my screws loose and it works good enough for now. I plan to fix this problem by making a shim about 1/16" that will go between the handle and the door that will make it work like a thicker door.Giving this 4 stars instead of 5 for poor instructions and the inflexibility of using different thickness doors. Also, didn't like the non-standard locking mechanism where you cannot lock it with the key and the knob turns even when locked.