[TR] How to tell the size of bolt or setscrew from the part number?

Sujit Roy triumphstag at gmail.com
Wed Jun 17 14:07:59 MDT 2020

Hello Don,
I have the standard triumph hardware catalog and have to refer to it all
the time. I do see some sort of sequence with the last digit, but other
places that sequence is off.

On Wed, Jun 17, 2020, 11:50 AM Don Hiscock <don.hiscock at gmail.com> wrote:

> Do you have a copy of the S-T Hardware Catalog, Sujit?  It's most helpful
> to track part number to part details.  There's a .pdf version on Randall's
> Google Drive collection of Triumph files.
> On Wed, Jun 17, 2020 at 1:46 PM Sujit Roy <triumphstag at gmail.com> wrote:
>> I've been trying to figure this out, but am at a loss. Please help
>> I have a part number in my parts book.  I also have the standard Triumph
>> parts list.
>> HU910
>> HU is set screw and I'm assuming is fully threaded.
>> HB on the other hand is a bolt and has a shoulder
>> I'm assuming the 9 is the bolt diameter.  Am I on the right track?
>> What is the 1 and 0 and can I tell from it, if it is a NC or NF thread?
>> I'm aware later Triumph switched the part no. system and that system is
>> more confusing.
>> Regards, Sujit
>> --
>> Sujit Roy
>> Cupertino, California
>> https://triumphstagblog.wordpress.com/
>> ** triumphs at autox.team.net **
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