Steel Shear Bolts for Polar 92 EMC II and Polar 92 ED Paper Cutters. (260469, 017771, 053063) The main shank on this shear bolt or shear pin is 48mm (1.89") long below the head. It has an M14 thread. Included with each of these shear pins is a mating washer faced hex nut (collar nut). The nut measures 19mm (.75") across the flats. Also included with each shear bolt is a steel roll pin. The roll pin is supplied already installed through the head.