bugbear wrote:
> In order to build assorted camera gadgets, one
> often runs into the hallowed 1/4" x 20 thread.
>
> This is (actually) the old Whitworth standard,
> but it's also used in all (smaller than medium format)
> size cameras.
>
> Since the UK has followed Europe, and most
> connectors use metric threads, I am struggling
> to find a source for these:
>
> http://www.leevalley.com/wood/page.a...,43455&p=52800
>
> Note the wide range of knobs, nuts, buts,
> threaded inserts etc.
>
> Can anyone advise me of a mail-order source
> for anything similar in the UK with sane
> prices (including postage)?
>
> BugBear
"bugbear" <bugbear@trim_papermule.co.uk_trim> wrote in message
news:13g1ukoc70c103d@corp.supernews.com...
> In order to build assorted camera gadgets, one
> often runs into the hallowed 1/4" x 20 thread.
>
> This is (actually) the old Whitworth standard,
> but it's also used in all (smaller than medium format)
> size cameras.
>
> Since the UK has followed Europe, and most
> connectors use metric threads, I am struggling
> to find a source for these:
>
> http://www.leevalley.com/wood/page.a...,43455&p=52800
>
> Note the wide range of knobs, nuts, buts,
> threaded inserts etc.
>
> Can anyone advise me of a mail-order source
> for anything similar in the UK with sane
> prices (including postage)?
>
> BugBear
That link do international orders so its worth emailing them for a quote on
selected items.
Sometimes it works out cheaper to buy from the US than the UK
bugbear wrote:
> In order to build assorted camera gadgets, one
> often runs into the hallowed 1/4" x 20 thread.
>
> This is (actually) the old Whitworth standard,
> but it's also used in all (smaller than medium format)
> size cameras.
The 1/4 -20 UNC thread used in camera mounts is an Unified National
Coarse thread having a 60 degree included thread angle with flat crest
and root forms. The 1/4" Whitworth thread has the same basic diameter
and pitch but the thread form has a 55 degree included angle with
radiused crest and root forms. The two are not the same and while the
threads may mate the strength of the mismatched threads is severely
compromised.
>
> Since the UK has followed Europe, and most
> connectors use metric threads, I am struggling
> to find a source for these:
>
> http://www.leevalley.com/wood/page.a...,43455&p=52800
>
> Note the wide range of knobs, nuts, buts,
> threaded inserts etc.
>
> Can anyone advise me of a mail-order source
> for anything similar in the UK with sane
> prices (including postage)?
>
> BugBear
On Mon, 01 Oct 2007 11:21:05 -0400, tomcas
<tomcas@mjwebsitedesign.com> wrote:
>bugbear wrote:
>> In order to build assorted camera gadgets, one
>> often runs into the hallowed 1/4" x 20 thread.
>>
>> This is (actually) the old Whitworth standard,
>> but it's also used in all (smaller than medium format)
>> size cameras.
>
>The 1/4 -20 UNC thread used in camera mounts is an Unified National
>Coarse thread having a 60 degree included thread angle with flat crest
>and root forms. The 1/4" Whitworth thread has the same basic diameter
>and pitch but the thread form has a 55 degree included angle with
>radiused crest and root forms. The two are not the same and while the
>threads may mate the strength of the mismatched threads is severely
>compromised.
That's interesting information, is the 1/4-20 UNC commonly available
in hardware stores?
George wrote:
> "bugbear" <bugbear@trim_papermule.co.uk_trim> wrote in message
>>
>> http://www.leevalley.com/wood/page.a...,43455&p=52800
>>
>> Note the wide range of knobs, nuts, buts,
>> threaded inserts etc.
>>
>> Can anyone advise me of a mail-order source
>> for anything similar in the UK with sane
>> prices (including postage)?
>>
>> BugBear
>
> That link do international orders so its worth emailing them for a quote on
> selected items.
>
> Sometimes it works out cheaper to buy from the US than the UK
Indeed. So far I don't even have a UK
source to compare to!!
I've ordered from Lee Valley before; tremendously
nice people to deal with.
irwell wrote:
> On Mon, 01 Oct 2007 11:21:05 -0400, tomcas
> <tomcas@mjwebsitedesign.com> wrote:
>
>> bugbear wrote:
>>> In order to build assorted camera gadgets, one
>>> often runs into the hallowed 1/4" x 20 thread.
>>>
>>> This is (actually) the old Whitworth standard,
>>> but it's also used in all (smaller than medium format)
>>> size cameras.
>> The 1/4 -20 UNC thread used in camera mounts is an Unified National
>> Coarse thread having a 60 degree included thread angle with flat crest
>> and root forms. The 1/4" Whitworth thread has the same basic diameter
>> and pitch but the thread form has a 55 degree included angle with
>> radiused crest and root forms. The two are not the same and while the
>> threads may mate the strength of the mismatched threads is severely
>> compromised.
>
> That's interesting information, is the 1/4-20 UNC commonly available
> in hardware stores?
"bugbear" <bugbear@trim_papermule.co.uk_trim> wrote in message
news:13g25oh2unja46a@corp.supernews.com...
> George wrote:
> > "bugbear" <bugbear@trim_papermule.co.uk_trim> wrote in message
> >>
> >> http://www.leevalley.com/wood/page.a...,43455&p=52800
> >>
> >> Note the wide range of knobs, nuts, buts,
> >> threaded inserts etc.
> >>
> >> Can anyone advise me of a mail-order source
> >> for anything similar in the UK with sane
> >> prices (including postage)?
> >>
> >> BugBear
> >
> > That link do international orders so its worth emailing them for a quote
on
> > selected items.
> >
> > Sometimes it works out cheaper to buy from the US than the UK
>
> Indeed. So far I don't even have a UK
> source to compare to!!
>
> I've ordered from Lee Valley before; tremendously
> nice people to deal with.
>
> But going transatlantic for a nut!?!
>
> That's just *wrong*
>
> BugBear
Well buy a few pieces...you never know when you might need em. :-)
On Mon, 01 Oct 2007 17:21:55 +0100, bugbear
<bugbear@trim_papermule.co.uk_trim> wrote:
>irwell wrote:
>> On Mon, 01 Oct 2007 11:21:05 -0400, tomcas
>> <tomcas@mjwebsitedesign.com> wrote:
>>
>>> bugbear wrote:
>>>> In order to build assorted camera gadgets, one
>>>> often runs into the hallowed 1/4" x 20 thread.
>>>>
>>>> This is (actually) the old Whitworth standard,
>>>> but it's also used in all (smaller than medium format)
>>>> size cameras.
>>> The 1/4 -20 UNC thread used in camera mounts is an Unified National
>>> Coarse thread having a 60 degree included thread angle with flat crest
>>> and root forms. The 1/4" Whitworth thread has the same basic diameter
>>> and pitch but the thread form has a 55 degree included angle with
>>> radiused crest and root forms. The two are not the same and while the
>>> threads may mate the strength of the mismatched threads is severely
>>> compromised.
>>
>> That's interesting information, is the 1/4-20 UNC commonly available
>> in hardware stores?
>
>Probably in the USA; it's an American standard.
This has come up many times, with the inevitable pedantic
arguments. For camera purposes the two threads are
interchangeable; I have various camera-related 1/4" threaded
items and some are 1/4W and others are UNC, depending on
where and when they were made.
There certainly is a difference between the two, but it's an
insignificant one in this particular case; there is more
variation in manufacturing tolerances than in the spec
differences between the two threads. Interestingly my
pre-war Leica ball head uses Whitworth threads, as does my
modern Manfrotto 709B table-top "digi" tripod. Most other
stuff I have is UNC, but its a moot point as I said.
B&Q Warehouse used to sell 1/4W studding and SS bolts and
maybe still do (I've bought both there), and 1/4W roofing
bolts and nuts are still available in many hardware shops.
"George" <nowhere@blueyonder.co.uk> wrote in message
news:Ha9Mi.23832$c_1.4665@text.news.blueyonder.co. uk...
>
> "bugbear" <bugbear@trim_papermule.co.uk_trim> wrote in message
> news:13g25oh2unja46a@corp.supernews.com...
>> George wrote:
>> > "bugbear" <bugbear@trim_papermule.co.uk_trim> wrote in message
>> >>
>> >> http://www.leevalley.com/wood/page.a...,43455&p=52800
>> >>
>> >> Note the wide range of knobs, nuts, buts,
>> >> threaded inserts etc.
>> >>
>> >> Can anyone advise me of a mail-order source
>> >> for anything similar in the UK with sane
>> >> prices (including postage)?
>> >>
>> >> BugBear
>> >
>> > That link do international orders so its worth emailing them for a
>> > quote
> on
>> > selected items.
>> >
>> > Sometimes it works out cheaper to buy from the US than the UK
>>
>> Indeed. So far I don't even have a UK
>> source to compare to!!
>>
>> I've ordered from Lee Valley before; tremendously
>> nice people to deal with.
>>
>> But going transatlantic for a nut!?!
>>
>> That's just *wrong*
>>
>> BugBear
>
> Well buy a few pieces...you never know when you might need em. :-)
>
>
1/4 Whitworth nuts and bolts? Look in Dad's/Granddad's shed/garage. I have
just been in the garage and fetched my old tins down and found 1/4 Whitworth
nuts and bolts with no trouble at all. :-))
1/4" threaded inserts in UK 
Linear Mode
