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| One for Dr mini... Thread on Wiper shaft. https://www.ausmini.com/forums/viewtopic.php?f=2&t=71264 |
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| Author: | Convertible Mini [ Tue Jun 14, 2011 11:54 am ] |
| Post subject: | One for Dr mini... Thread on Wiper shaft. |
Can any one tell me what thread size is on Mini wiper Pivot shafts 68 on ? This is the Alloy shaft with the thin Chrome nut. It is a very fine thread. |
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| Author: | drmini in aust [ Tue Jun 14, 2011 7:10 pm ] |
| Post subject: | |
Not sure of size- (I can check tomorrow) but it is a very fine thread, you probably want a die to clean the shaft threads up with? I just use a new nut with a hacksaw groove cut inside it- this acts as a poor man's die nut (the `shaft' threads are only soft alloy so this works fine). I'll let you know the thread size and pitch tomorrow night. |
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| Author: | Convertible Mini [ Tue Jun 14, 2011 11:01 pm ] |
| Post subject: | Thanks |
Thanks Doc, I went to the engineering shop and they measure the thread for me. I needed to know the thread size. It is 5/8"26TPI. |
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| Author: | GT mowog [ Wed Jun 15, 2011 6:59 am ] |
| Post subject: | Re: Thanks |
Convertible Mini wrote: Thanks Doc, I went to the engineering shop and they measure the thread for me. I needed to know the thread size. It is 5/8"26TPI.
That thread type is called 'Brass'. (I actually suspected it was). All 'Brass' theads have 26 tpi regardless of diameter. |
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| Author: | drmini in aust [ Wed Jun 15, 2011 9:02 pm ] |
| Post subject: | Re: Thanks |
GT mowog wrote: Convertible Mini wrote: Thanks Doc, I went to the engineering shop and they measure the thread for me. I needed to know the thread size. It is 5/8"26TPI. That thread type is called 'Brass'. (I actually suspected it was). All 'Brass' theads have 26 tpi regardless of diameter. I suspected it would be 26tpi `brass' thread, regardless of the diameter. Trivia- the metric system also has a `brass thread' equivalent, used on thin tube fittings (often in brass material, but not always). Very commonly used in Europe. This pitch is 1.0mm, which coincidentally is 25.4 tpi, almost the same as the 26tpi Pommy original. It is used on various diameters, in the same way that the UK's brass thread is. |
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| Author: | GT mowog [ Wed Jun 15, 2011 9:14 pm ] |
| Post subject: | Re: Thanks |
drmini in aust wrote: Trivia- the metric system also has a `brass thread' equivalent, used on thin tube fittings (often in brass material, but not always). Very commonly used in Europe. I did only learn of this metric brass thread a couple of weeks ago. Just another to add to the other 28...... 
There is also a metric 'BSP', heard of that one? The Italians love it (god bless them). |
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| Author: | drmini in aust [ Wed Jun 15, 2011 9:23 pm ] |
| Post subject: | Re: Thanks |
GT mowog wrote: drmini in aust wrote: Trivia- the metric system also has a `brass thread' equivalent, used on thin tube fittings (often in brass material, but not always). Very commonly used in Europe. I did only learn of this metric brass thread a couple of weeks ago. Just another to add to the other 28...... There is also a metric 'BSP', heard of that one? The Italians love it (god bless them). Yeah the next guy who tells me the metric system is simple will get strangled. How about the 5 different pitches for a 12mm thread.. 
Yep pipe threads in the metric system are R-1/8, R-1/4, R-3/8, R-1/2, etc etc. No prize for guessing what these threads are exactly the same as. 
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| Author: | GT mowog [ Wed Jun 15, 2011 9:33 pm ] |
| Post subject: | Re: Thanks |
drmini in aust wrote: Yeah the next guy who tells me the metric system is simple will get strangled.
How about the 5 different pitches for a 12mm thread.. Yep pipe threads in the metric system are R-1/8, R-1/4, R-3/8, R-1/2, etc etc. No prize for guessing what these threads are exactly the same as. Yeah, for stuff under an inch, imperal is just so much easier, working in thousands. Stuff that new money stuff where the sun don't shine! I alway found B.A. a bit odd though, until I worked out it was Imperial Metric! (eg 0BA = M6) |
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| Author: | drmini in aust [ Wed Jun 15, 2011 9:48 pm ] |
| Post subject: | |
They should teach thread systems to kids in high school- my pet hate is people who lose a UNF bolt in a Mini, then get an M8 or whatever and force it in where it doesn't belong.. eg the steady bar on back of the block. 
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| Author: | GT mowog [ Wed Jun 15, 2011 9:53 pm ] |
| Post subject: | |
drmini in aust wrote: They should teach thread systems to kids in high school- my pet hate is people who lose a UNF bolt in a Mini, then get an M8 or whatever and force it in where it doesn't belong.. eg the steady bar on back of the block.
I think folk like that are in the wrong trade
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| Author: | mickmini [ Thu Jun 16, 2011 9:56 pm ] |
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drmini in aust wrote: They should teach thread systems to kids in high school-
They used to - subject was called Engineering Science. But seeing as i left high school more than 20 years ago who knows if it still exists
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| Author: | Timbo [ Thu Jun 16, 2011 10:12 pm ] |
| Post subject: | |
In my garage, I have the following: UNF, UNC, BSC/CEI, BA, metric coarse, metric fine, BSF, BSW, brass and BSP. Plus the odd non-standard ones. I tend to be a bit careful when I grab a bolt and try to shove it in a hole. Thread gauges, calipers and a thread chart are all standing by. Tim |
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