The inside knob on my front door will not "bite" into the opposing
thread. Result: the knob comes loose and people have a lot of trouble
opening the door from inside.
I don't want to redo the whole installation because the outside is a
beautiful old fixture. What would happen if I glued the rod or shaft
(or whatever it's called) from the inside into the opposing thread?
No no no. You can replace the worn parts if it is worth fixing.
The cheap ones, generally don't have parts available. If you have a
cheap model, then replace it. The difference in quality is amazing
once you see it.
I'm assuming you are describing an older door knob screwed onto a square
threaded shaft, with a set screw in the knob shank to keep it from
rotating on the shaft once it's been screwed down to its proper position.
If the female shaft threads in the knob are really stripped out, then
I'd suggest the proper repair would be to bore out the shaft hole in the
knob, soft solder a brass plug into that bore, drill and retap it to
suit the shaft and drill and retap the setscrew hole.
Failing that you might be able to use a helicoil to restore the knob's
inside threat, but the set screw hole could become problematical.
If you can't do any of the above, then take a shot at gluing the knob
onto the shaft. I'd recommend using "JB Weld" epoxy for that job.
Or. you could do what I did a six years ago when I had too much time on
my hands and decided I just had to trick out our home with a bunch of
antique brass doorknobs modified to fit its modern locksets, no two of
which now match:
The biggest downside of putting it back together with epoxy glue is
that you'll never be able to take it apart again.
If the set screw just keeps coming loose, use some LockTite. It's
basically glue that works well enough to keep the screw from turning on
its own, but poorly enough to let go when you lean on it with a
Yeah...but I don't visualize any scenario where I would have to
take it apart.... I just want the damn thing to stay in place!
Hi, Steve - the problem isn't the set screw. It's the shaft that
fits -- or should fit -- into the female "receptable". See above
suggestions, including an intriguing one: "Wrap the shaft with
aluminum foil then screw the knob on. "
I'll try it & report back to the NG.
But thanks for tip abvout LockTite, which might work on OTHER
doorknobs in my house,
most of which have Knob Alzheimer's <g>
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