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JawsOrca

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And now we have hit the crux of the matter. No one uses proper imperial measures anymore no wonder its all going belly up:dance

what I want to know is if we have mint imperials do the septics have mint Americans and the French mint metrics? And I haven't got started on driving on the wrong side malarkey!:bow

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1 hour ago, Baitrunner said:

And now we have hit the crux of the matter. No one uses proper imperial measures anymore no wonder its all going belly up:dance

We do!!!

You just can't beat a good old ounce or 1/64 of an inch. 

And just ask any boat owner on here how long their boat is and the answer will be in feet. Oh, by the way, what size wheels are on your cars? Another answer lacking in millimetres I suspect!

I rest my case. :party:

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2 hours ago, Baitrunner said:

I actually have some screws on my boat that are either UNF or UNC! It's only 13 year old and they are Devils to get hold off!!

try Hubble's in Great Yarmouth. They have some stainless unc and unf on the shelf and can order what they dont carry.

 

Edited by JanetAnne
coz I is stupid!
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Awfully sorry Alan...even though RT was designed and built by a bloke that designed and built Broom boats...I have it on good authority, that Brundall Navy chap, that he did a much better job on RT! More of a Dyson than a broom! :naughty:

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34 minutes ago, grendel said:

most electrical screw threads are still old imperial sizes - for example the screws that hold on the light switch and socket faceplates. are I think a BA size.

It's more awkward than that Grendel.

Conduit box screws used to be 2BA, but were changed to M4 back in about the 1970's.

All new faceplates and switches come with nice shiny new M4 panhead screws, which graunch up the thread in really old existing conduit boxes.

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46 minutes ago, grendel said:

most electrical screw threads are still old imperial sizes - for example the screws that hold on the light switch and socket faceplates. are I think a BA size.

They are 3.5mm now grendel, for galv single and double knockout boxes.Box lid brass used to be 2BA. and switch and socket 4BA. I remember the change well, I had to buy a new tap and wrench holder,not cheap then. Cheap as chips now.

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21 minutes ago, Strowager said:

All new faceplates and switches come with nice shiny new M4 panhead screws, which graunch up the thread in really old existing conduit boxes.

Which is why I have a tin (come on guys you all do) with a selection of BA and metric plate screws in different lengths as well - you never know how old your box is until you screw it!

I still want to know what bright spark thought in 2003, "I know we have used metric everywhere else, but we have a box of these UNF machine screws left over from the 70's, so lets get rid of them on these boats!".

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MM is that Beardshaw? Liberty mentioned them and had a look on their site already so might make a call.

Iain,

   I probably also have a few back boxes with BA threads as well in the other box in the garage. Come on we all have boxes of stuff that might come in handy one day don't we?

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13 minutes ago, Baitrunner said:

......MM is that Beardshaw? Liberty mentioned them and had a look on their site already so might make a call.........

Yes, Beardshaw is on the small industrial estate about half a mile North of Wroxham Bridge.

An excellent local source of screw fixings of every kind, in large or even one-off quantities.

I've bought from them, UNF, metric, Whitworth etc. in SS, brass, zinc, with allen, torx, pan, pozi, pan, cheese head. A true specialist. 

Quite a bit cheaper than Norfolk Marine, and they stock A4 stainless too, whereas NM only have A2.

Watch out for their opening hours though, weekdays only, and they shut early on Fridays.

Hoveton.jpg

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