Latest Responses

By serge.nelissen

December 2, 2018, 12:37 pm



I tap an ISO thread, but the Pitch and drill size are expressed in inches.
The list box is unreadable.

What's the meaning of Thread percentage?


cant leave messages here
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Eldar Gerfanov

December 2, 2018, 9:27 pm


Thank you for the purchase!
Just click on the in/mm label to change the unit type of the corresponding field.

The Table color issue has been fixed in the latest update v1.537

I am going to combine most of your reports into one article, so our back and forward does not take up 2 pages of this forum:)

Best regards!



December 3, 2018, 6:50 pm

Hi Eldar,

What is that percentage?

And indeed, the color issue is fixed.




Eldar Gerfanov

December 3, 2018, 7:12 pm

That is theoretical thread engagement percentage for the given tap hole size.

I can not give you exact definiton. But basically that is the amount of overlap between the threads of the ideal screw and the threads of the tapped hole with 100% being impossibly tight and 0% being so loose, the screw just falls through:)

Look up online to get a better definition.

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