Qualfast: M12 Lock Nut N/M Insert BZP (10) Prevailing Torque Type Lock Nuts Metric Steel Nylon Insert Grade 10 MPN: M12 Lock Nut N/M Insert BZP (10) Attributes: Box Quantity: 100 Driving Features: Hexagon Grade: 10 Leading Standard: DIN 985 (1987) Material: Steel Nut Type: Nylon Insert Surface Treatment: Zinc Plated Thread: Metric Thread Direction: Right Thread Size: M12