How To Properly Fit A Door Knob With A Grub Screw Fitting
Are you having problems with your Beehive Door Knob unscrewing on one side, leaving you stranded and unable to open the door? If so, you are experiencing a common problem, caused by a simple fitting error. Watch our helpful video guide, or read on to discover tips and advice for solving those annoying door knob problems, and making sure your Beehive Door Knob is fitted correctly.
Unboxing Your Beehive Door Knob
When you first unbox your Beehive Door Knob you will see your kit comprises a pair of door knobs (with rose plates) attached to a threaded mortice bar, an allen key and fixing screws. The grub screws will already be screwed in place and they are housed within the hole on the neck of each door knob.
Tips For Correctly Fitting Your Beehive Door Knob
To prepare for installation, you will first need to remove one of the Beehive Door Knobs from the mortice bar. Using the Allen key, insert it into the hole in the neck of the door knob and unscrew the small grub screw. Make sure you do not lose the grub screw, and then unwind the door knob so that you are left with only one door knob fixed to the mortice bar. You will notice that the fixed door knob has its grub screw fixed to one of the flat sides of the mortice bar. This is the correct angle of installation and ensures the door knob is secure and will not unwind.
Next, you need to fit your tubular latch, or if you already have a tubular latch fitted, you will need to check the hole in your door is lined up properly with the hole in the tubular latch.
The mortice bar hole in a tubular latch is square and not diamond. Guide the mortice bar through the door, making sure to keep the bar square. If you think of the hole as a clock face, and imagine the twelve, three, six and nine o'clock settings, you need to guide the mortice bar through with the flat sides of the mortice bar at twelve, three, six and nine o'clock. To make installation easy, keep the grub screw hole on the already fitted door knob at twelve o'clock - this will help with the proper fitting of the door knob on the other side.
Using the wood screws supplied, now fix the rose plate in place.
Tip: For a neat finish you want to make sure the grub screw hole is not visible. You can do this by rotating the rose plate and fixing it in place so that the grub screw guiding hole in the rose plate is at six o'clock.
Once the door knob and rose plate are fitted to one side of the door, you then need to fit the other side. Place the rose plate over the mortice bar and wind on the door knob.
In the picture below you can see what an incorrect fitting looks like. Here, the grub screw hole is not lined up with any of the flat sides of the mortice bar (ie twelve, three, six & nine o'clock). If the grub screw is screwed in at this angle it will hit the corner edge of the mortice bar and will not be secure. The door knob will eventually wind off and not work, potentially trapping someone in a room!
So now you know what an incorrectly fitted door knob looks like, let's get on and fit it correctly!
Wind the door knob on fully and then give a little back turn. The door knob needs a small amount of give, so please ensure you do not wind it on too tightly. Make sure the grub screw hole lines up with one of the flat sides of the mortice bar - either twelve, three, six or nine o'clock. You can then tighten the grub screw in place and secure the door knob. In the example shown below, the grub screw hole is at 9 o'clock and lined up nicely with one of the flat sides of the mortice bar.
Once the grub screw is tightened you can then rotate the rose plate to ensure the grub screw hole is not visible. Fix the rose plate securely in place with the wood screws supplied. Your door knob is now securely fitted and will give you years of service!
We hope you found this helpful. Why not take a look at our other helpful video and guide How To Fit A Tubular Latch.