02GF74
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 posted on 18/7/13 at 10:39 AM |
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what thread?
I measure 4.46 mm maj diameter and around 50 tpi ..... so it not metric, nor any standard imperial size I can find so what can it be?
(It is the threaded part of the plunger on a set of Hayes mountain bike disc brakes)
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rachaeljf
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| posted on 18/7/13 at 10:58 AM |
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M4.5x0.5 close enough?
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nick205
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| posted on 18/7/13 at 10:59 AM |
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+1
M4.5 x 0.5 metric fine thread
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02GF74
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| posted on 18/7/13 at 11:05 AM |
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harumphh ..... didn't think such things as 4.5mm existed so didn't look.... pretty sure you are spot on
once again LCB saves the day .....
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nick205
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| posted on 18/7/13 at 11:09 AM |
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Plenty of taps and dies available on eBay if you need to make/repair the parts.
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mcerd1
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| posted on 18/7/13 at 11:31 AM |
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data here:
http://www.newmantools.com/tech/threadmf.htm
that is an odd size - even my trusty zeus tables don't list it  -- whats it for ?
(they do list the course version M4.5x0.75 ~34tpi)
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nick205
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| posted on 18/7/13 at 12:36 PM |
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quote:
Originally posted by mcerd1
data here:
http://www.newmantools.com/tech/threadmf.htm
that is an odd size - even my trusty zeus tables don't list it -- whats it for ?
(they do list the course version M4.5x0.75 ~34tpi)
If it's part of the brake plunger, I'm guessing it's a fine thread to enable accurate adjustment ?
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