Big-head 2BA screws
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andy pugh
May 6, 2022, 4:10:55 PM5/6/22
to Neracar Group
The 2BA screws that hold the brass friction plate to the flywheel have
a conersink that is larger than the current standard head size for
2BA.
(Poor quality photo)
https://photos.app.goo.gl/eChp1QjJzw2jtCAY8
This is largly a cosmetic issue, but does bug me.
A solution is to buy M5 screws (which have almost exactly the same
thread pitch on a larger diameter) and re-thread them with a die.
https://photos.app.goo.gl/A39KZ5WBt1RbQ3Cc6
The next step is to make a simple fixture to allow me to re-thread
them without damaging the slot in the process.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912
a conersink that is larger than the current standard head size for
2BA.
(Poor quality photo)
https://photos.app.goo.gl/eChp1QjJzw2jtCAY8
This is largly a cosmetic issue, but does bug me.
A solution is to buy M5 screws (which have almost exactly the same
thread pitch on a larger diameter) and re-thread them with a die.
https://photos.app.goo.gl/A39KZ5WBt1RbQ3Cc6
The next step is to make a simple fixture to allow me to re-thread
them without damaging the slot in the process.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912
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