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Re: Bolts (was Re: 1500 Hard-top Questions)

To: Dean.Dashwood@enron.com
Subject: Re: Bolts (was Re: 1500 Hard-top Questions)
From: "T. .R. Dafforn" <td214@cam.ac.uk>
Date: Fri, 06 Apr 2001 10:38:35 +0100
Hi Dean,
I know what you mean as far as nuts etc,
I bought a bumper pack from one of those places that advertise in the back of
Pract. Class. Not bad, but too many lock washers and too few nuts/bolts.
Otherwise I use a local hardware store (the best I have ever seen) that is
part industrial and even has a small engineering works! B & Q is a bit of a
disaster! for specialist bolts (ie the pretty ones fo the hard top I have to
order from Kippings etc.
I think (although I am not totally sure) that my 1500 BL workshop manual has a
whole list of bolt sizes, and torque specs at the front. Also the Kipping
catalogue has its nuts and bolts coded in such a way that you can work out
what they are and then buy locally.
I'm looking at a front suspension rebuild and I want to replace all the nuts
an bolts, so i'll be on the hunt soon..
Cheers
Tim

Dean.Dashwood@enron.com wrote:

> This whole subject I think is something that needs more exploring.  I
> generally tend to order all nuts, bolts, etc. from the big suppliers,
> simply because I know I'll get something which fits, and is the appropriate
> strength/grade for the task.  But I realise that I pay over the odds for
> this, and I also feel stupid phoning Kippings to mail-order a few pence
> worth of nuts - the postage sometimes costs more than the parts!  (I
> usually try to order at the same time as something else, but sometimes it
> just doesn't work out.....)
>
> I know that many listers have vast amounts of experience in engineering,
> automotive or otherwise, and can confidently go into a hardware store and
> buy exactly what they need, but my attempts to do this in the past have
> usually fallen flat.  Often this is because I can't find a part that fits.
> Do many stores stock only metric bolts now?
>
> I did once manage to find a nut for the exhaust manifold-downpipe, only to
> have it fall off a couple of weeks later - apparently I'd bought one in the
> wrong material (can't remember what) and it expanded due to the heat.  Ok,
> stupid I know, but I'm not an engineer (well, I'm a computer engineer, but
> this isn't very relevant).  Of course I know that exhaust manifolds get
> hot, but I *don't* know which materials expand more than others.
>
> What would be really cool is a list of all the nuts, bolts and other common
> parts that go into our cars, and a spec for each one - something that I can
> take into a hardware shop, show them, and without any more questions be
> given the correct thing.  Does anyone know of a resource like this?  If
> not, would anyone with a website be willing to host it - I'm sure that if
> the list all got together we'd be able to get a sizeable list of bolts
> without too much effort.
>
> I'd also appreciate some pointers from UK listers on where to go to get
> these parts.  I tend to try places like B&Q, but as I said, I often don't
> have too much joy.
>
> Dean
> -----------------
>
> Date: Thu, 5 Apr 2001 19:47:35 +0100
> From: "Graham Stretch" <technical@iwnet.screaming.net>
> Subject: Re: 1500 Hard-top Questions
>
> Hi Richard, Mike
> The 1/2" AF bolt should by rights have a 5/16" thread on it.
> On the whole Triumph stuck to the system of into steel use UNF (fine)
> thread
> form, into aluminium use UNC (coarse) thread form.
> Common sizes on Triumphs
>
> 5/16 AF = 3/16 UNF or alternatively 2BA
> 3/8   AF = 3/16 UNF or alternatively 2BA
> 7/16 AF = 1/4   UNF or UNC
> 1/2   AF = 5/16 UNF or UNC
> 9/16 AF = 1/2   UNF or UNC
> 5/8   AF = 9/16 UNF  (bolt often found with a 3/4 AF nut on)
> 3/4   AF = 5/8   UNF

--
Tim Dafforn
University of Cambridge
Structural Medicine Unit
Cambridge Institute for Medical Research
Wellcome Trust Centre for Molecular Mechanisms of Disease
Hills Rd, Cambridge CB2 2XY.
UK
Tel. (01223) 336829
Fax. (01223) 336827
http://smokeroom.cimr.cam.ac.uk/

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