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[Healeys] column bolt thread

Subject: [Healeys] column bolt thread
From: rchaskell at earthlink.net (Bob Haskell)
Date: Thu, 23 Jun 2011 02:07:34 -0400
References: <978302.85344.qm@web83716.mail.sp1.yahoo.com> <4E028CEF.10701@earthlink.net> <BANLkTi=-1HWauZm-QJdycnctOk3qFNSrSA@mail.gmail.com> <BANLkTimdqicRodQnPAWSKtM9tiBwjk9duw@mail.gmail.com>
Curt,

I don't know if the BN1 column thread is the same as one on the 6 
cylinder non-adjustable column.

I shouldn't have said that 13/16-20 is a valid size, as I haven't looked 
for a chart that lists it.  I went by the fact that there's a 13/16-20 
BSC die listed at British Tools and Fasteners - 
http://www.britishfasteners.com/index.php?crn=263 - at the bottom of the 
list (item 5735).

Sorry,

Bob Haskell
AHCA 3000 Mk I registrar
http://www.ciahc.org/registry_3000mk1.php

On 06/23/2011 12:32 AM, Curt/Nancy Arndt wrote:
> OK Guys,
>
> I just checked my BN1 steering column, and it looks to be closer to 3/4"
> x 20 TPI which IS a valid BSC (BSCy)  thread.  I'm just amazed that they
> used a cycle thread for this application.
>
> I've attached a copy of my BSC reference chart.
>
> Cheers,
>
> Curt
>
> On Wed, Jun 22, 2011 at 6:55 PM, Curt/Nancy Arndt <cnaarndt at gmail.com
> <mailto:cnaarndt at gmail.com>> wrote:
>
>     Nick & Bob,
>
>     I'm a bit confused here.  As far as I am aware, BSC does not  come
>     in a 13/16 " size.  While there appears to be a select few sizes
>     that come in both 20 and 26 TPI, it does not include 13/16".   In
>     fact, my reference charts show that the only sizes in BSC that have
>     both a fine and coarse thread are... 7/16", 1/2", 9/16", 5/8",
>     11/16", 3/4".
>
>     I missed the history on this thread but we are talking about a
>     British Bike here and not a Healey?
>
>     Nick do you have a copy of the reference chart you got this
>     information from?  I'd like to include it in my reference material
>     since I'm writing another article on British fasteners for Austin
>     Healeys.
>
>     Thanks,
>
>     Curt

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