By the design of Right&left handed thread, of course it can be used to adjust the tension of attached cable, so the turnbuckles are not needed in the railing system. And this cable railing wont be easily unfixed or destroyeded.
The lag screws could be drilled into wood to adjust the tightness without extra turnbuckle or tensioner. Deck and Stair Cable railing system is not only simple but also won't block your view. Hydraulic crimper is needed to connect the cable to lag screws.