[TR] Differences between a bolt - hexagon head and a setscrew - hexagon head

[Sujit Roy]

Thx. Randall, You corrected me with the part no. My parts book for sure
shows WP08 as (2)

By the way,  i have noticed what in the USA is called a hex cap screw. "A *hex
head cap screw* is a six-sided bolt with a trimmed *hex head* and a washer
face on the bearing surface" Most of my screws and bolts for the Triumph
have this washer face. Do I really need an additional washer or is the
washer needed to spread the load?

Sujit

On Tue, May 21, 2019 at 4:20 AM Michael Marr <mmarr at albiontechnical.com>
wrote:

> The shank of a screw is threaded all the way to the head of the screw.
> The shank of a bolt is only threaded part way - the balance of the bolt is
> unthreaded.
>
> Michael Marr
>
> Mobile:  630-202-0065
>
> Sent from my iPad
>
> On May 21, 2019, at 01:04, Sujit Roy <triumphstag at gmail.com> wrote:
>
> I can't figure out what the difference  is between  a bolt - hexagon head
> and a setscrew hexagon head as mentioned in the Standard Hardware Catalog.
> Here's my theory.  A bolt  - hexagon head has an integrated washer built
> into the head. and the part no. starts with HB where as a setscrew -
> hexagon head does not have the integral washer. (HU)
>
> My Stag parts book shows three fasteners holding on the water pump cover.
>
> 1 is a bolt (HU) no washer needed nor shown, the other two are setscrews
> (HU) 2 washers needed and are shown.
>
>
>
> Can someone enlighten me?
>
> Regards, Sujit
>
> --
> Sujit Roy
> Cupertino, California
>
> https://triumphstagblog.wordpress.com/
>
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-- 
Sujit Roy
Cupertino, California

https://triumphstagblog.wordpress.com/
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