Qualfast: M10 Hex Slotted/Castle Nut A2 Hexagon Slotted And Castle Nut Metric A2 Stainless Steel DIN 935-1 MPN: M10 Hex Slotted/Castle Nut A2 Attributes: Box Quantity: 50 Dimensions P: 1.5 Dimensions m: 12 Dimensions n: 2.8 Dimensions s: 17 Driving Features: Hexagon Grade: 304 Material: A2 Stainless Number of Slots: 6 Supplied In: 50 Surface Treatment: Plain Thread: Metric Thread Direction: Right Thread Size: M10