[Healeys] Official Parts List Question

[Rich C]

Jim is referring to the standard BMC letter and number codes for standard 
fasteners. However, in the case of the crown wheel bolts (and for that 
matter, many other specialty bolts throughout the car) are specific part 
numbers and have nothing to do with the standard fastener codes. Therefore 
ATA 7232 is a specific part number for that specific bolt.

Rich Chrysler

--------------------------------------------------
From: "rjhco" <rjh.co at tx.rr.com>
Sent: Thursday, September 16, 2010 11:51 AM
To: <healeys at autox.team.net>
Subject: [Healeys] Official Parts List Question

> The attachment bolts for the crown wheel (ring gear) are listed in the
> Official Parts List as:  ATA 7232
>
> According to the fastener reference, the first two numbers are the 
> diameter
> in 1/16ths and the second two numbers are the length in 1/8ths.   Clearly,
> the system does not work for the above number.  Also, ATA is not listed in
> the fastener references.
>
> Can someone please explain the above numbering system?
>
>>From memory, I believe that the bolts are grade 8; 3/8 x 24; one inch in
> length.  I don't have access to the bolts at the moment or I would measure
> them!
>
> Best regards,
> Jim
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