Qualfast: M16X1.50 Hex Nut MF (10) Hexagon Nut, Metric - MF (Metric Fine), Steel - Standard (Self Colour), Plain - Grade 10, DIN 934 (1987). MPN: M16X1.50 Hex Nut MF (10) Attributes: Box Quantity: 100 Driving Features: Hexagon Grade: 10 Material: Steel Surface Treatment: Plain Thread: Metric Fine Thread Direction: Right Thread Size: M16