Shear bolt for Polar 115 EMC II & Polar 115 MON Paper Cutters. (231658) Fits the pull arm on Polar model 115EMC II & 115MON paper cutters. The main shank has an M16 thread and is 60mm long below the head. Included with each of these shear bolts is a mating washer faced hex collar nut. The head is 30mm diameter and .10mm thick and has a flat on one side as shown.