SAE J1926 ports as an option for holes/threads

[john]

SAE J1926 O-Ring interfaces are the standard for the automotive aftermarket for most fluids and are used on everything from fuel injection to coolant hoses. 

As far as I can tell there is no quick way to accurately create this feature in Fusion. Its not sufficient to add a chamfer to a counterbored hole as this standard actually has two chamfers. The first chamfer is 12 or 15 degrees which then leads into a 45 to allow space for the o-ring to seats. 

[josh.sapp1]

They are used a lot for SCUBA equipment also. It would also be nice for Stub Acme to be a thread choice.

[jeff.castle]

Is there a reason this got archived? Is there a resolution?