M16 Shear Nut BZP BZP A high security permanent nut fastening. The hexagonal part of the nut shears off at a predetermined torque (as only the cone is threaded) leaving a tamper resistant cone fastening behind. MPN: M16 Shear Nut BZP Attributes: Box Quantity: 100 Driving Features: Hexagon Material: Steel Surface Treatment: Zinc Plated Thread: Metric Thread Direction: Right Thread Size: M16