David Jenkins
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| posted on 9/11/05 at 10:48 AM |
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Wall socket screw threads? (O/T)
I've just finished decorating a bedroom, and found that one of the wall mains sockets has a knackered thread; either cross-threaded or mucked up
with plaster/corrosion/gunge.
Does anyone know off-hand what thread it is? I'd rather run a tap through and clean up the thread, than muck up my newly-painted wall to
replace the mounting box! 
I suspect it's an obscure BA thread (maybe 5BA) but I'm not sure.
cheers,
David
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flak monkey
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| posted on 9/11/05 at 10:51 AM |
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I *think* they are 4BA. It shouldnt be anything too weird. I have used electrical bolts in many of my models as they have a nice fine thread for
adjustments. Like I say IIRC they are 4BA.
The major diameter for 4BA is 3.6mm.
David
[Edited on 9/11/05 by flak monkey]
Sera
http://www.motosera.com
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colibriman
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| posted on 9/11/05 at 10:59 AM |
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It's m3.5 (as long as its not a 40 year old back box - that will be a BA thread),
you can get a rethreader from any electrical wholesalers for about 4 quid if you don't have a tap.
HTH
Colin
need a bike engine? - www.colibriman.com
SVA ready Mk Indyblade possibly for sale.....if the offers good...!
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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Peteff
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| posted on 9/11/05 at 11:07 AM |
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Stick a self tapper in it 
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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mangogrooveworkshop
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| posted on 9/11/05 at 11:12 AM |
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quote:
Originally posted by Peteff
Stick a self tapper in it
You will split it and feck the box
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David Jenkins
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| posted on 9/11/05 at 11:28 AM |
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Thanks Colin,
That seems to match what I've got. The boxes will have been fitted in the mid-70s, so they probably are 3.5mm. The screw thread certainly
doesn't mesh with my 4BA taps, so it's not that one!
Guess what size tap I haven't got!  I've got all the standard metric sizes, nearly all the BA range, a lot of ME sizes, and even a few
left-handers - but not that one. So I'm off to find a rethreader this arvo... useful thing to have in the toolbox anyway.
thanks to all for the help,
David
quote:
Originally posted by colibriman
It's m3.5 (as long as its not a 40 year old back box - that will be a BA thread),
you can get a rethreader from any electrical wholesalers for about 4 quid if you don't have a tap.
HTH
Colin
[Edited on 9/11/05 by David Jenkins]
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colibriman
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| posted on 9/11/05 at 11:37 AM |
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David,
If you struggle to find one (should be easy) U2U me your address and I'll send you one
cheers
Colin
need a bike engine? - www.colibriman.com
SVA ready Mk Indyblade possibly for sale.....if the offers good...!
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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DarrenW
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| posted on 9/11/05 at 12:26 PM |
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quote:
Originally posted by Peteff
Stick a self tapper in it
Dont be daft - a woodscrew is best!
Or sikeflex??
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iank
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| posted on 9/11/05 at 01:19 PM |
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or drill out and tap M10 
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andyace
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| posted on 9/11/05 at 01:27 PM |
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PU Sealant, just hope you dont want to open it again. 
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David Jenkins
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| posted on 9/11/05 at 05:00 PM |
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All sorted!
Went to a local decent wholesaler, rethreader cost me £3.95 + VAT.
Job done in no time after that - can't beat having the proper tools.
thanx to all (even the pillocks!  )
David
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