Qualfast: M12X40 Hex Connection Nut High BZP Hexagon Connection Nut Metric Steel - BZP (Bright Zinc Plated) High Type MPN: M12X40 Hex Connection Nut High BZP Attributes: Box Quantity: 50 Driving Features: Hexagon Material: Steel Surface Treatment: Zinc Plated Thread: Metric Thread Direction: Right Thread Size: M12