Our home is approx. 120 years old and has nine doors using the glass
doorknobs with threaded spindles. The problem is that with time, the
knobs pull off the spindle and no amount of resetting and tightening
the set screw on the knob will keep them in place for longer than a
week or so.
At one point I wrapped a few rounds of teflon plumbers' tape around
the spindle thinking that it might increase the diameter enough to
create a better hold. This lasted a few weeks longer than usual but
eventually the knob pulled off the spindle.
I'm tempted to wrap some epoxy resin putty around the spindles for a
permanent solution but shudder at the thought of ever having to
replace them. Does anyone have a better solution?
Are the threads in either the knob, on the spindle or both worn to the
point where the knob just pushes on? If so, your f***ed onless you can
replace both from someplace like Restoration Hardware. The set screws
are not designed to hold the knobs, just prevent them from turning.
Rich Greenberg Marietta, GA, USA richgr atsign panix.com + 1 770 321 6507
Eastern time. N6LRT I speak for myself & my dogs only. VM\'er since CP-67
No, even replacement sets from local hardware stores fall off after a
couple of weeks.
One solution, albeit very expensive, would be to buy ones identical to
what our hardware stores sell, from architectural antique hardware
sites. (We're in Canada so there's the exchange rate as well as the
extra cost of shipping and Customs duties to consider.)
Then there's no guarantee that they'll be any better than what I've
I'm not sure I understand your problem. When you say " No, even
replacement sets from local hardware stores fall off after a couple of
weeks." do you mean that your are replacing the spindle and both door
knobs? If that's what you mean then you need to figure out why the threads
Basically the spindle is a bolt and the door knob is a nut. What you
describe sounds as if the thread of the "nut" or the "bolt" is failing
within a couple of weeks. This would be most odd.
If you mean that the knobs unscrew and come off and the replacement set
is a new setscrew then the setscrew thread in the doorknob is stripped. Get
a tap and a slightly larger diameter setscrew.
Dave M. .......
I can buy recently made glass door knobs and spindle in a set from
local hardware stores that are identical to those sold by
architectural antique hardware suppliers, for around the same price.
I'll buy a new set, screw on the knob making sure that it's in the
right position so the set screw will be in contact with a flat side of
the spindle, and tighten the set screw. After a few weeks, the knob
rattles around in the door and after another week, if I pull on the
knob, it will come off in my hands leaving the spindle and knob on the
other side, in place. So I'll screw the knob back on, tighten the set
screw and two weeks later the knob slides off the spindle again.
I don't think the threads are failing, it looks as if there is a
fraction of a millimetre too much space between the threads of the
spindle and those inside the knob.
Loctite sounds like a great idea. I'll give it a try before epoxy
resin as a last resort.
Many thanks too all for their help, I do appreciate it.
The set screw pushes the spindle against the knob threads. Unless it
is an entirely wrong and sloppy fit or the threads are stripped, that's
You would regret using epoxy. If it didn't work, or for whatever
reason you wanted to change something, refinish the door, whatever,
you'd have to cut off the knob and ruin the knob, escutheon and
spindle. Use the Loctite and move on to the next battle.
Loctite threadlocking adhesive. Don't use the red, it's way too strong
for your needs. Use the green, it's made for set screws and such.
I tried it on 1 and did the other 14. I took apart the set, brought the
set screw to a machine shop and picked up some with same thread but
slightly longer. I bored out the spindle deep and wide enough to take
the new set screw. So in through the door handle and into the spindle
where it was bored out - perfect and no more "jiggley" that the couple
around the house that don't fall off.
Take a business card, and cut a strip about 3/8 inch wide. Put that into the
knob hole, and then thread the knob on. Tighten with screw. Rip the last of
the cardboard off.
works for awhile. Thats' what I do.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.