Dear Nick,

You always were the observant one...

On Fri, 1 Aug 2008, Nick Floersch wrote:

What was not mentioned was the different thread densities... I don't
know the term for this,

The term for this my software geek brother, is Threads Per Inch (TPI)

but as far as I am aware, from my collection of screws, there are two primary screw thread densities. It seems like newer drives usually use the tighter thread density screws, while older hardware uses the wider thread density screws.

The difference here is even more bizzare. The older, less dense screws are typically an American standard, #4 shaft with 40 TPI. These are refered to as 4-40. The more dense are the Metric standard screws, which have a Metric designation, either DIN or EIAJ.

Keep up the good thoughts.

Regards,


Flint

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