Medium Fit for Thru Holes in UNC Hole Tables

ptc-2513036 — Sun, 13 Dec 2020 17:07:30 GMT

Hi,

I have been trying to incorporate all callout notes for ISO and for UNC/UNF into two tables. This includes all of our applicable scenarios: Tapped, Clearance, C'BORE and C'SINK.

Did this by adding a DEFAULT_CALLOUT_FORMAT_DATA section to each table and it works brilliantly.

The only problem I have is that my UNC/UNF (INCH) table will not display the Medium Fit option when defining a Clearance hole.

The UNC/UNF (INCH) table (In Testing) was created after the ISO table was completed and deployed by doing a save as from the ISO table and updating the THREAD_DATA values.

Does anyone have any tips for resolving this issue?

Regards,

Jason Knighten

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Re: Medium Fit for Thru Holes in UNC Hole Tables

TomD.inPDX — Mon, 08 Apr 2013 15:59:39 GMT

It is probably not considered an issue because the machinery handbook only defines a close and nominal fit as "convention".

Kudos for the effort to standardize this. What is the policy when someone wants something different from what is in the tables?

topic Medium Fit for Thru Holes in UNC Hole Tables in Customization

Medium Fit for Thru Holes in UNC Hole Tables

Re: Medium Fit for Thru Holes in UNC Hole Tables