Qualfast: M20X1.50 Locknut N/M Insert MF BZP (5) Hexagon Lock Nut Metric Steel - BZP (Bright Zinc Plated) Prevailing Torque Type - Nylon Insert Grade 5 DIN 985 MPN: M20X1.50 Locknut N/M Insert MF BZP (5) Attributes: Box Quantity: 25 Driving Features: Hexagon Grade: 5 Leading Standard: DIN 985 (1987) Material: Steel Nut Type: Nylon Insert Surface Treatment: Zinc Plated Thread: Metric Thread Direction: Right Thread Size: M20