I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j

really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!

--
Mike Perkins

Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j

really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!


Are they allowed a hole in the middle?

https://www.ebay.co.uk/itm/271233181310

Tim

--
Trolls and troll feeders go in my killfile

On 05/09/2016 16:22, Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j


really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!


Could you use a Rivnut rather than welding a nut to the plate?

http://www.bollhoff.co.uk/en/uk/fast...ogy/rivnut.php

--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

On 05/09/16 16:32, Tim+ wrote:
Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j

really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!


Are they allowed a hole in the middle?

https://www.ebay.co.uk/itm/271233181310

Tim

why weld? what's wrong with a rivet nut bashed in?

http://uk.farnell.com/captive-nuts/t...3/pg/110001433

--
The biggest threat to humanity comes from socialism, which has utterly
diverted our attention away from what really matters to our existential
survival, to indulging in navel gazing and faux moral investigations
into what the world ought to be, whilst we fail utterly to deal with
what it actually is.

On 05/09/2016 16:59, The Natural Philosopher wrote:
On 05/09/16 16:32, Tim+ wrote:
Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j


really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!


Are they allowed a hole in the middle?

https://www.ebay.co.uk/itm/271233181310

Tim

why weld? what's wrong with a rivet nut bashed in?

http://uk.farnell.com/captive-nuts/t...3/pg/110001433

Why? Because I have a MIG welder at hand!

The thread will be M8. There are some rivnuts on ebay that might make a
neater job than a weld. I hadn't considered them.

--
Mike Perkins

On 05/09/2016 16:56, Roger Mills wrote:
On 05/09/2016 16:22, Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j



really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!


Could you use a Rivnut rather than welding a nut to the plate?

http://www.bollhoff.co.uk/en/uk/fast...ogy/rivnut.php

As I said in reply to NT, I hadn't considered them.

It does need to be M8 and there are some on eBay but not sure how easy
they pull down to clamp the washer.

--
Mike Perkins
Video Solutions Ltd
www.videosolutions.ltd.uk

Mike Perkins wrote:

I'm trying to source a steel disk of 50mm or slightly greater Are
there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick?

Too expensive?

http://www.ebay.co.uk/itm/50mm-x-3mm-disc/161055951660

In article ,
Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j

really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!

You can buy steel on Ebay. Maybe even a washer etc in the dimensions you
need - although I'd be inclined to just get some steel - perhaps an offcut
from a local fabricator - and cut to size. Easier to get it true after
welding.

--
*People want trepanners like they want a hole in the head*

Dave Plowman London SW
To e-mail, change noise into sound.

On 05/09/2016 16:32, Tim+ wrote:
Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j

really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!


Are they allowed a hole in the middle?

https://www.ebay.co.uk/itm/271233181310


Most certainly a hole but fear the ones you found the hole will be too
big to be of use.

I did find:

http://www.ebay.co.uk/itm/M12-x-50mm...-/281093811226
which is similar but has a M12 clearance hole rather than M20 so
suitable for welding a 13mm/M13 nut to.

I did have a further look and found some M10 x 50MM dia x 1.5mm thick.
The conduit lid is 0.6-0.7mm so given the reduced diameter and double
the thickness I believ it will be rigid enough and have the right feel.

Many thanks.

--
Mike Perkins

On 05/09/16 18:20, Mike Perkins wrote:
On 05/09/2016 16:59, The Natural Philosopher wrote:
On 05/09/16 16:32, Tim+ wrote:
Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j



really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!


Are they allowed a hole in the middle?

https://www.ebay.co.uk/itm/271233181310

Tim

why weld? what's wrong with a rivet nut bashed in?

http://uk.farnell.com/captive-nuts/t...3/pg/110001433

Why? Because I have a MIG welder at hand!

When all you have is a hammer...

The thread will be M8. There are some rivnuts on ebay that might make a
neater job than a weld. I hadn't considered them.


Unless you are going to be putting massive torque on the thing, nut
inserts are always a massively better bet than welded on nuts

Especially in thin plate

And.....
.....all you need is that hammer!




--
Mike Perkins


--
Ideas are more powerful than guns. We would not let our enemies have
guns, why should we let them have ideas?

Josef Stalin

On 05/09/2016 16:22, Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j


really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!

Thanks for the ideas.

Going for a 1.5mm thick washer M10 x 50mm and a rivnut from eBay.

--
Mike Perkins

On 05/09/16 18:23, Mike Perkins wrote:
On 05/09/2016 16:56, Roger Mills wrote:
On 05/09/2016 16:22, Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j




really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!


Could you use a Rivnut rather than welding a nut to the plate?

http://www.bollhoff.co.uk/en/uk/fast...ogy/rivnut.php


As I said in reply to NT, I hadn't considered them.

It does need to be M8 and there are some on eBay but not sure how easy
they pull down to clamp the washer.

The things I am thinking of, you drill an interference hole, and press
them in and mash the top over to rivet the, A press or a hammer and a
drift is what it takes.

This is what I mean. 40p each. 1/2" hole needed

http://www.ebay.co.uk/itm/Pack-of-10...-/221854988330

suitable for up to 14swg.

When we used em in production, we used as press to fit them, but for
prototypes a vice was good, or a steel drift and a hammer

I strongly recommend getting some and trying them out.

And use the MIG to weld granny in her mobility scooter instead.



--
"Women actually are capable of being far more than the feminists will
let them."

On 05/09/2016 18:55, The Natural Philosopher wrote:
On 05/09/16 18:23, Mike Perkins wrote:
On 05/09/2016 16:56, Roger Mills wrote:
On 05/09/2016 16:22, Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j





really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!


Could you use a Rivnut rather than welding a nut to the plate?

http://www.bollhoff.co.uk/en/uk/fast...ogy/rivnut.php



As I said in reply to NT, I hadn't considered them.

It does need to be M8 and there are some on eBay but not sure how easy
they pull down to clamp the washer.

The things I am thinking of, you drill an interference hole, and press
them in and mash the top over to rivet the, A press or a hammer and a
drift is what it takes.

This is what I mean. 40p each. 1/2" hole needed

http://www.ebay.co.uk/itm/Pack-of-10...-/221854988330


suitable for up to 14swg.

When we used em in production, we used as press to fit them, but for
prototypes a vice was good, or a steel drift and a hammer

I strongly recommend getting some and trying them out.

And use the MIG to weld granny in her mobility scooter instead.

I'm hoping the M10 1.5mm thick washers I'm getting will have a clearance
hole almost the right size that won't need too much fettling for the
rivnut to fit.

I have a press so fingers crossed.

--
Mike Perkins
Video Solutions Ltd
www.videosolutions.ltd.uk

On Monday, September 5, 2016 at 6:51:59 PM UTC+1, Mike Perkins wrote:
On 05/09/2016 16:22, Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j


really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!

Thanks for the ideas.

Going for a 1.5mm thick washer M10 x 50mm and a rivnut from eBay.

--
Mike Perkins

The clinch nuts, do they go through the sheet, then get the thin part belled out like a rivet?

On 9/5/2016 6:51 PM, Mike Perkins wrote:
On 05/09/2016 16:22, Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j



really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!

Thanks for the ideas.

Going for a 1.5mm thick washer M10 x 50mm and a rivnut from eBay.

Sounds good. Avoid the cheaper type of "pliers" setting tools. If you
don't want to buy an expensive, high quality setting tool because you
are only doing a limited number of parts, just use some studding and
nuts with a length of stout tubing as a spacer. You don't want to be
rotating a thread in the nut which you are setting, you want to be
*pulling* it via a nut on the other end of the studding. A bit of moly
grease on the studding will help. You will want an anti-rotate feature
for the jacking stud, an easy way is a pair of nuts locked together at
one end.

So your sequence of parts is

Rivnut, washer, studding, spacer, jacking nut, two nuts locked together.

On 05/09/2016 21:21, newshound wrote:
On 9/5/2016 6:51 PM, Mike Perkins wrote:
On 05/09/2016 16:22, Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j




really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!

Thanks for the ideas.

Going for a 1.5mm thick washer M10 x 50mm and a rivnut from eBay.

Sounds good. Avoid the cheaper type of "pliers" setting tools. If you
don't want to buy an expensive, high quality setting tool because you
are only doing a limited number of parts, just use some studding and
nuts with a length of stout tubing as a spacer. You don't want to be
rotating a thread in the nut which you are setting, you want to be
*pulling* it via a nut on the other end of the studding. A bit of moly
grease on the studding will help. You will want an anti-rotate feature
for the jacking stud, an easy way is a pair of nuts locked together at
one end.

So your sequence of parts is

Rivnut, washer, studding, spacer, jacking nut, two nuts locked together.

I get the principle, thanks. Rather than two locked nuts, wouldn't a
bolt-head be better?

--
Mike Perkins

On 05/09/2016 16:22, Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j


really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!

How about sticking a 60mm hole saw through a bit of 3mm thick steel -
then just use the bit you cut out?


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On 9/5/2016 10:05 PM, Mike Perkins wrote:
On 05/09/2016 21:21, newshound wrote:
On 9/5/2016 6:51 PM, Mike Perkins wrote:
On 05/09/2016 16:22, Mike Perkins wrote:
I'm trying to source a steel disk of 50mm or slightly greater where I
can weld a nut in the centre and retains an element of rigidity.

I'm currently using:

http://www.screwfix.com/p/deta-galva...ck-of-10/1946j





really its too large a diameter though not a serious issue but is too
thin where it distorts badly whilst welding a nut in the centre.

Are there any off-the-shelf sources I can obtain a couple of these that
are 2-3mm thick? I've run out of ideas!

Thanks for the ideas.

Going for a 1.5mm thick washer M10 x 50mm and a rivnut from eBay.

Sounds good. Avoid the cheaper type of "pliers" setting tools. If you
don't want to buy an expensive, high quality setting tool because you
are only doing a limited number of parts, just use some studding and
nuts with a length of stout tubing as a spacer. You don't want to be
rotating a thread in the nut which you are setting, you want to be
*pulling* it via a nut on the other end of the studding. A bit of moly
grease on the studding will help. You will want an anti-rotate feature
for the jacking stud, an easy way is a pair of nuts locked together at
one end.

So your sequence of parts is

Rivnut, washer, studding, spacer, jacking nut, two nuts locked together.

I get the principle, thanks. Rather than two locked nuts, wouldn't a
bolt-head be better?

Yes, that would be fine, but if you are doing a number of them, after
the screw nut location has become a bit worn you will need a new bolt.
Whereas with a length of studding, you just cut off that bit and move
along a bit.

I find with 6, 8, 10, and 12 mm studding plus nuts and washers I can
make pullers to do all sorts of things, but I never seem to have quite
the right sort of bolt to hand.

A merit of using a proper bolt (hex or socket head) is that these are
available in "high tensile" materials which are significantly stronger
than ordinary studding, so the threads are a bit more robust.