[Healeys] bolt identification

[Curtis Arndt]

John,

Like most British bolts of the earlier part of last century, the Vendor
name was printed on the bolt, e.g. Rubery-Owen or RO, Bees, Wiley, Woden
and about 30+ others.  So to answer your question... BEES was the vendor.
The bolt you refer to with an actual Bee on the head is a very early bolt,
and is one that I have in my collection.  It most likely is a Whitworth
bolt, either BSF (fine) or BSW (coarse).

The  "Rubery Owen B28-35" that you refer to is a "Mild" steel bolt, similar
to an SAE Grade "2" US bolt.  The strength rating is "B" and the
measurement is 28 to 35 tons per square inch or tons tensile.  The range
refers to "yield" strength and "ultimate tensile" strength as described in
my attached article.  FYI, multiply 28 or 35 times a ton and you'll get the
strength in pounds, or psi... HOWEVER  we're talking British here, so it's
not 2,000 pounds as in a US ton but 2,240 pounds as in a British Long Ton!

Along with the vendor name was the strength rating expressed as a letter
which for *hi tensile* bolts was D, E, F and G prior to 1950 and changed to
R, S, T,  U,  V,  W,  and X after 1950.  I have included (attached) my
draft on British Strength rating codes decoded which I hope to officially
publish on my blog site once it's up and running.

Also, the bolt heads were marked to differentiate Whitworth (BSW, BSF,
etc...) from UNF and UNC once this new thread form system was phased in
during the early 1950s.  For bolts, that was a "circular" depression on the
head of the bolt which meant the bolt was a "Unified" versus a "Whitworth"
thread form bolt.

I hope this helps and email me directly if you have any further questions.

Cheers,

Curt



On Wed, Nov 21, 2018 at 9:01 PM Michael Oritt <michael.oritt at gmail.com>
wrote:

> Hi John--
>
> Check this out:
>
>
> http://3.bp.blogspot.com/-2zllShyvv34/UQLGj7XqZjI/AAAAAAAAPUg/e1--MCxAPKY/s1600/Bee:1.jpg
>
> Happy Thanksgiving to you and Cindi.
>
> Best--Michael Oritt
>
> On Wed, Nov 21, 2018 at 10:19 PM John Vrugtman <javrugtman at htcnet.org>
> wrote:
>
>> https://en.wikipedia.org/wiki/Rubery_Owen
>>
>> Bees bolts seem to be very obscure, saw a picture of one, but no
>> reference to the manufacturer
>>
>> On 11/21/2018 6:58 PM, warthodson at aol.com wrote:
>>
>> I was sorting thru a box of hardware & found two bolts that I cannot
>> identify. They both are approx. 1/4" diameter. They both have the same
>> thread per inch. According to my thread gage they are between 24 & 26 TPI.
>> So call it 25 TPI. I do not have a metric thread gage to check them against.
>>
>> One is marked "Rubery Owen B28-35" on the head & measures about 5/8"
>> long. The other is marked "BEES" & has a embossed emblem of a bee on the
>> head & measures about 3/4" long. The lengths do not include the head, of
>> course. No other markings on the heads.
>> They will not accept a BSF nut, UNF or UNC nut or any metric nuts that I
>> have.
>>
>> Can anyone ID these for me?
>>
>> Thanks,
>> Gary Hodson
>>
>>
>>
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