Black oxide finish
The tightening screws are fitted with a patented wedge clamping system. This system allows the greatest clamping forces to be achieved at low torques with a simple manual operation. The wedge clamping system is self-limiting in every clamping position. A longer path can be quickly traversed via the external thread of the tightening screw before the wedge clamping system (stroke up to 2.2 mm) is used for clamping. Tightening screws are used for many purposes, primarily in moulding, stamping machines and machine tools, as well as in the construction of jigs and fixtures and equipment manufacture.