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Mark Storkamp Mark Storkamp is offline
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Default Please explain this Metric thread size

In article ,
wrote:

On Mon, 09 May 2016 23:27:58 -0400,
wrote:

The threads on a MIG Welder tip are listed as:

M5 x .8 thd

I always have problems understanding metrics.

I know that a 1/4 x 20 bolt means 1/4 inch diameter, 20 threads per
inch. That's so easy.

Then they shove metrics into our lives and all hell breaks loose...

I'm going to take a guess,

The "M" means METRIC

The "5" means 5 milimeter (mm)

The ".8" I dont understand at all. It's surely not .8 threads per inch,
or that would mean less than one thread per inch.

I'm sure the "thd" means THREAD


I googled this and 5mm is 0.197 inch, which needs a 4.20mm drill size.
(NOT what I was looking for)!


Damn, I hate metrics . . . . . . . .


It is easier than you think The thread pitch is .8mm

The rest of the world would ask WTF is an inch?


And you can divide the countries of the world into two groups: Those
that use the metric system, and those that have been to the moon ;-)