My threading "tip" refers to full profile threading inserts.
Only purchase a threading boring bar that takes carbide inserts. Then use it either at the rear of the part, or inverted at the front of the part to also cut external threads.
The spindle will need to run in reverse, which isn't a problem. The drawback is long threads, where it may not be suitable.
By using the same tip to cut internal and external threads you can save a lot of cash. As a bonus, there is naturally more clearance whixh helps with larger lead angles. If you have the facility for thread milling you can use it for that too.

Or: my preference for a short male thread on the end of a bar, is to tap it and force a grub screw in the end. It enables the mating part to screw up to the shoulder without weakening the bar with an undercut. Plus you can have a high tensile thread in a more ductile material! and it takes far less time.