[Healeys] bolt identification

Thu Nov 22 12:16:27 MST 2018

Gentlemen,

Here is some more good information...

Cheers,

Curt

On Thu, Nov 22, 2018 at 12:45 AM Curtis Arndt <cnaarndt at gmail.com> wrote:

> John,
>
> Here is some more pertinent information that might help...
>
> I've attached a copy of my 1957 vintage machinery Handbook which shows the
> various markings used to denote Whitworth from Unified fasteners.
>
> Also an excerpt from one of my yet completed articles.
>
> Cheers,
>
> Curt
>
>
> On Thu, Nov 22, 2018 at 12:32 AM Curtis Arndt <cnaarndt at gmail.com> wrote:
>
>> 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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