Hi,
I'm looking for the name of a fitting.
I need to screw a platform onto some legs that will support it. The
idea is to drill a hole (countersunk) down through the platform,
insert a threaded bolt and then screw into the leg. The top of each
leg will have a hole bored in it, with a threaded cylindrical metal
receptacle for the bolt embedded in the hole. The idea is that the
bolt screws into the receptacle, making the assembly easy to take
apart.
Anyone know what this receptacle is called, and a good place to find
them? Home Depot and Lowes don't seem to have them.
I believe you are describing either a T-Nut or a Threaded Insert. Most
likey the T-Nut on a table leg.
"Roger Shoaf" <[email protected]> wrote in message
news:[email protected]...
>
> "Dave Hinz" <[email protected]> wrote in message
> news:[email protected]...
>> On Thu, 20 Jan 2005 22:08:18 +0100, Juergen Hannappel
> <[email protected]> wrote:
>> > Dave Hinz <[email protected]> writes:
>> >
>> >
>> > [...]
>> >
>> >>
>> >> I think you've described a "standoff". Radio Shack sells them in
>> >
>> > A standoff has no wood thread on it's outside.
>>
>> I didn't (and don't) see that mentioned as a requirement in his
>> message?
>>
>
> Here is the quote with emphasis added:
>
>>The top of each
>> leg will have a hole bored in it, with a *threaded* cylindrical metal
>> receptacle for the bolt embedded in the hole.
>
> --
>
> Roger Shoaf
>
> About the time I had mastered getting the toothpaste back in the tube,
> then
> they come up with this striped stuff.
>
>
"Dave Hinz" <[email protected]> wrote in message
news:[email protected]...
> On Thu, 20 Jan 2005 22:08:18 +0100, Juergen Hannappel
<[email protected]> wrote:
> > Dave Hinz <[email protected]> writes:
> >
> >
> > [...]
> >
> >>
> >> I think you've described a "standoff". Radio Shack sells them in
> >
> > A standoff has no wood thread on it's outside.
>
> I didn't (and don't) see that mentioned as a requirement in his
> message?
>
Here is the quote with emphasis added:
>The top of each
> leg will have a hole bored in it, with a *threaded* cylindrical metal
> receptacle for the bolt embedded in the hole.
--
Roger Shoaf
About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.
On Thu, 20 Jan 2005 12:38:07 -0800, Abe <[email protected]> wrote:
> Hi,
>
> I'm looking for the name of a fitting.
>
> I need to screw a platform onto some legs that will support it. The
> idea is to drill a hole (countersunk) down through the platform,
> insert a threaded bolt and then screw into the leg. The top of each
> leg will have a hole bored in it, with a threaded cylindrical metal
> receptacle for the bolt embedded in the hole. The idea is that the
> bolt screws into the receptacle, making the assembly easy to take
> apart.
I think you've described a "standoff". Radio Shack sells them in
a 1/4" hex by maybe 3/4" long size, and I'm sure that there are
other sizes out there.
>
> Anyone know what this receptacle is called, and a good place to find
> them? Home Depot and Lowes don't seem to have them.
If you know anyone with a (metal) lathe, they're pretty easy to,
ahem, turn out, given some hex or round stock and the appropriate
tap. But 'standoff' is the word you need here, and you should be able
to buy whatever you need without making it.
I've made 'em when I didn't feel like driving to the hardware store.
Dave Hinz
On Thu, 20 Jan 2005 22:08:18 +0100, Juergen Hannappel <[email protected]> wrote:
> Dave Hinz <[email protected]> writes:
>
>
> [...]
>
>>
>> I think you've described a "standoff". Radio Shack sells them in
>
> A standoff has no wood thread on it's outside.
I didn't (and don't) see that mentioned as a requirement in his
message?
T-nuts are basically worthless if used on the TOP of a table let, they
don't really have any holding power and pull out of the drilled holes
easily. They really are best used with the bolt/screw/whatever coming
thru from the opposite side so the flange of the T-nut is pulled up
against the wood to supply strength/rigidity
Threaded inserts would be the better choice here, OR KD hardware with
a thru dowel/etc that is threaded to catch the bolt
John
On Sat, 22 Jan 2005 03:14:02 -0500, "Brad Kimbrell" <[email protected]>
wrote:
>I believe you are describing either a T-Nut or a Threaded Insert. Most
>likey the T-Nut on a table leg.
>
>
>"Roger Shoaf" <[email protected]> wrote in message
>news:[email protected]...
>>
>> "Dave Hinz" <[email protected]> wrote in message
>> news:[email protected]...
>>> On Thu, 20 Jan 2005 22:08:18 +0100, Juergen Hannappel
>> <[email protected]> wrote:
>>> > Dave Hinz <[email protected]> writes:
>>> >
>>> >
>>> > [...]
>>> >
>>> >>
>>> >> I think you've described a "standoff". Radio Shack sells them in
>>> >
>>> > A standoff has no wood thread on it's outside.
>>>
>>> I didn't (and don't) see that mentioned as a requirement in his
>>> message?
>>>
>>
>> Here is the quote with emphasis added:
>>
>>>The top of each
>>> leg will have a hole bored in it, with a *threaded* cylindrical metal
>>> receptacle for the bolt embedded in the hole.
>>
>> --
>>
>> Roger Shoaf
>>
>> About the time I had mastered getting the toothpaste back in the tube,
>> then
>> they come up with this striped stuff.
>>
>>
>
>You didn't say whether or not the platform is intended to support one or
>more humans but if it is, I wouldn't trust threaded inserts. There is
>another device called a cross dowel that is inserted into a hole bored at
>right angles to the centerline of the bolt and the bolt threads thru its
>shank. It is about three times as long and the diameter of the bolt and I
>believe it to be much more secure than a threaded insert because there is
>much more than just threads bearing its load. Cross dowels are often used
>to assemble furniture made of particle board because threaded inserts
>usually strip out in such applications..
>
>In your application if the bolts securing the platform are inserted
>vertically, the cross dowels would be inserted in holes bored horizontally.
--------------
Ahh yes, I see what you're saying. Fortunately, the total weight load
on this will be no more than 25 to 30 pounds.
>Threaded insert, or in Germany you would call it "Rampa-Muffe".
>Look at:
>http://www.leevalley.com/hardware/page.aspx?c=1&p=44237&cat=3,43576,43578&ap=
>or
>http://www.leevalley.com/hardware/page.aspx?c=1&p=40984&cat=3,43576,43578&ap=1
>Although those do not seem to be made of steel
>
>Or see here:
>http://www.vandykes.com/discount_product/02365730/
>(DAGS threaded inserts for wood)
----------
Thanks very much, exactly what I was looking for.
You didn't say whether or not the platform is intended to support one or
more humans but if it is, I wouldn't trust threaded inserts. There is
another device called a cross dowel that is inserted into a hole bored at
right angles to the centerline of the bolt and the bolt threads thru its
shank. It is about three times as long and the diameter of the bolt and I
believe it to be much more secure than a threaded insert because there is
much more than just threads bearing its load. Cross dowels are often used
to assemble furniture made of particle board because threaded inserts
usually strip out in such applications..
In your application if the bolts securing the platform are inserted
vertically, the cross dowels would be inserted in holes bored horizontally.
"Abe" <[email protected]> wrote in message
news:[email protected]...
> >>> I think you've described a "standoff". Radio Shack sells them in
> >>
> >> A standoff has no wood thread on it's outside.
> >
> >I didn't (and don't) see that mentioned as a requirement in his
> >message?
> ---------------
> I should have been clearer. It must be threaded on the outside so that
> it won't pull out of the leg once tension is applied by tightening
> down the bolt from above.
>>> I think you've described a "standoff". Radio Shack sells them in
>>
>> A standoff has no wood thread on it's outside.
>
>I didn't (and don't) see that mentioned as a requirement in his
>message?
---------------
I should have been clearer. It must be threaded on the outside so that
it won't pull out of the leg once tension is applied by tightening
down the bolt from above.
Dave Hinz <[email protected]> writes:
[...]
>
> I think you've described a "standoff". Radio Shack sells them in
A standoff has no wood thread on it's outside.
--
Dr. Juergen Hannappel http://lisa2.physik.uni-bonn.de/~hannappe
mailto:[email protected] Phone: +49 228 73 2447 FAX ... 7869
Physikalisches Institut der Uni Bonn Nussallee 12, D-53115 Bonn, Germany
CERN: Phone: +412276 76461 Fax: ..77930 Bat. 892-R-A13 CH-1211 Geneve 23
"Roger Shoaf" <[email protected]> writes:
> "Dave Hinz" <[email protected]> wrote in message
[...]
>> I didn't (and don't) see that mentioned as a requirement in his
>> message?
>>
>
> Here is the quote with emphasis added:
>
>>The top of each
>> leg will have a hole bored in it, with a *threaded* cylindrical metal
>> receptacle for the bolt embedded in the hole.
Just *threaded* does not imply _on the outside_.
--
Dr. Juergen Hannappel http://lisa2.physik.uni-bonn.de/~hannappe
mailto:[email protected] Phone: +49 228 73 2447 FAX ... 7869
Physikalisches Institut der Uni Bonn Nussallee 12, D-53115 Bonn, Germany
CERN: Phone: +412276 76461 Fax: ..77930 Bat. 892-R-A13 CH-1211 Geneve 23
Abe <[email protected]> writes:
> Hi,
>
> I'm looking for the name of a fitting.
>
> I need to screw a platform onto some legs that will support it. The
> idea is to drill a hole (countersunk) down through the platform,
> insert a threaded bolt and then screw into the leg. The top of each
> leg will have a hole bored in it, with a threaded cylindrical metal
> receptacle for the bolt embedded in the hole. The idea is that the
> bolt screws into the receptacle, making the assembly easy to take
> apart.
>
> Anyone know what this receptacle is called, and a good place to find
> them? Home Depot and Lowes don't seem to have them.
Threaded insert, or in germany you would call it "Rampa-Muffe".
Look at:
http://www.leevalley.com/hardware/page.aspx?c=1&p=44237&cat=3,43576,43578&ap=
or
http://www.leevalley.com/hardware/page.aspx?c=1&p=40984&cat=3,43576,43578&ap=1
Although those do not seem to be made of steel
Or see here:
http://www.vandykes.com/discount_product/02365730/
(DAGS threaded inserts for wood)
--
Dr. Juergen Hannappel http://lisa2.physik.uni-bonn.de/~hannappe
mailto:[email protected] Phone: +49 228 73 2447 FAX ... 7869
Physikalisches Institut der Uni Bonn Nussallee 12, D-53115 Bonn, Germany
CERN: Phone: +412276 76461 Fax: ..77930 Bat. 892-R-A13 CH-1211 Geneve 23