Qualfast: M12 Tooth Flange Hex Nut BZP (8) Grade 8 steel, bright zinc-plated. Serrated or plain face flange. MPN: M12 Tooth Flange Hex Nut BZP (8) Attributes: Box Quantity: 100 Driving Features: Hexagon Grade: 8 Material: Steel Surface Treatment: Zinc Plated Thread: Metric Thread Direction: Right Thread Size: M12