Toggle clamps GN 810.1 work according to the toggle principle: lever and clamping bar move in the same direction. In the clamped position the operating lever is in its vertical position. Toggle clamps in the U-bar version with two flanged washers (Type B) can accommodate an application specific clamping screw. A clamping screw with neoprene rubber tip is also included for type BC. Toggle clamps in type F can be adapted to special requirements by welding with the supplied clasp.