https://forums.autodesk.com/t5/fusion-support-forum/issue-with-countersink-tapped-holes/m-p/12109447#M32929 <P>Yes this is a known limitation reported years ago! The workaround is, first create the threaded hole with cosmetic threads, no chamfer then add the chamfer as a second feature then edit the hole and change to modeled threads.</P> <P>&nbsp;</P> <P>Mark</P> Tue, 18 Jul 2023 14:19:12 GMT HughesTooling 2023-07-18T14:19:12Z https://forums.autodesk.com/t5/fusion-support-forum/issue-with-countersink-tapped-holes/m-p/12109441#M32928 <P>When using the hole tool to make a countersunk tapped hole, the threads have a tendency to begin below the countersink rather than going through them. This results in an issue where there is interference between the screw and the tapped hole; see attached.</P> Tue, 18 Jul 2023 14:15:11 GMT https://forums.autodesk.com/t5/fusion-support-forum/issue-with-countersink-tapped-holes/m-p/12109441#M32928 brent.bulgarelli 2023-07-18T14:15:11Z https://forums.autodesk.com/t5/fusion-support-forum/issue-with-countersink-tapped-holes/m-p/12109447#M32929 <P>Yes this is a known limitation reported years ago! The workaround is, first create the threaded hole with cosmetic threads, no chamfer then add the chamfer as a second feature then edit the hole and change to modeled threads.</P> <P>&nbsp;</P> <P>Mark</P> Tue, 18 Jul 2023 14:19:12 GMT https://forums.autodesk.com/t5/fusion-support-forum/issue-with-countersink-tapped-holes/m-p/12109447#M32929 HughesTooling 2023-07-18T14:19:12Z https://forums.autodesk.com/t5/fusion-support-forum/issue-with-countersink-tapped-holes/m-p/12109469#M32930 <P>Just to be clear. Create the thread as one feature and the chamfer as a second. PS, please don't attach pictures, just paste them into your message.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="HughesTooling_0-1689690192287.png" style="width: 600px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1241872i4367F073712A8313/image-size/medium?v=v2&amp;px=400" role="button" title="HughesTooling_0-1689690192287.png" alt="HughesTooling_0-1689690192287.png" /></span></P> <P>&nbsp;</P> Tue, 18 Jul 2023 14:24:20 GMT https://forums.autodesk.com/t5/fusion-support-forum/issue-with-countersink-tapped-holes/m-p/12109469#M32930 HughesTooling 2023-07-18T14:24:20Z https://forums.autodesk.com/t5/fusion-support-forum/issue-with-countersink-tapped-holes/m-p/12109489#M32931 <P>Thanks Mark!</P><P>Worked like a charm!</P> Tue, 18 Jul 2023 14:26:37 GMT https://forums.autodesk.com/t5/fusion-support-forum/issue-with-countersink-tapped-holes/m-p/12109489#M32931 brent.bulgarelli 2023-07-18T14:26:37Z