Available here are Shear Bolts in A2 Stainless Steel. The Shear System is a high security permanent fastener. Both the Shear Nut and the Shear Bolt have a hexagon part which shears off at a predetermined torque. Installed using standard hex socket or spanner. Once installed, the Shear Bolt leaves a tamper resistant cone. This item is sold in a box quantity of 50. This is not a stock item therefore please allow 3-5 working days for dispatch. As this is not kept as a stock item, this is non-returnable. Click Here to view the installation video. M8 x 80mm - Hafren Button Head Shear Security Bolt - A2 ST ST - Box of 50