Qualfast: M20 Hex Nut Nylon PA (6.6) Hexagon Nut Metric Nylon - PA (Polyamide) Plastic - 6.6 MPN: M20 Hex Nut Nylon PA (6.6) Attributes: Box Quantity: 10 Driving Features: Hexagon Grade: PA 6.6 Material: Plastic Surface Treatment: Plain Thread: Metric Thread Direction: Right Thread Size: M20