First, it is necessary to be able to produce metal cylinders that meet standards adequately; only then does cutting threads become feasible.
As for how to produce metal cylinders, he felt uncertain.
He could make metal approximating a cylindrical shape, but there would definitely be deviations, not up to standard.
The resulting threads would definitely be even less standard, and the bolts and nuts would likely have difficulty meshing, either slipping easily or jamming halfway.
He had to be able to produce thousands or tens of thousands of standard bolts and nuts on an assembly line basis, only then would his machining capability be barely qualified.
However, he could not be in a hurry.
He believed that the more he studied steel equipment, the deeper his understanding of designing and making lathes would be.
The first machines he needed were not for machining steel but for woodworking.
He could gradually gain experience.
