Originally Posted by SteelCharlie

Nope! Incredibly high precision high tensile strength parts can be roll threaded easier than threads cut. Aircraft spec Ti bolts are commonly rolled as are to the best of my knowledge ALL aircraft bolts. Cut threads introduce a stress riser at the thread/body join.
Steering tubes are quite different and I can't imagine why any company would invest in rolling threads on them when cutting machinery would produce perfectly satisfactory results at a way small fraction of the cost.