On 2/27/2018 11:47 PM, Emanuel Berg wrote:
AMuzi wrote:
Crank shown is different, being 28tpi.
The others are 24tpi.
Is this the same old English "Imperial" system?
24tpi = 24G Whitworth 55 deg?
Sure looks like that...
And yes, I counted the Taiwanese crank has
6 threads for 4/16" or 24tpi as you say.
No.
They are American SAE 60-degree thread.
p.s. You need a set of thread gauges:
http://toolguyd.com/blog/wp-content/...itch-Gauge.jpg
--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971