GRS 004-864 Nylon Tipped Thumb Screw Assembly for Encore BenchMates

This nylon tipped thumb screw is for the Encore Benchmates only. It is a small adjusting screw that you use on what GRS calls the Clamp Tube to keep it in place and allow some tension while rotating the clamp tube.
While some other parts remain the same from the first generation benchMates, this part has changed.  If you have the first generation BenchMate, the same screw is part number 002-513, Otto Frei part number 102.513.