Forged alloy 10, 12, 22, 27, 32
Confused by 12-point nuts? A 12-point nut is simply two hexagons overlaid at 30° to each other. The size is measured exactly the same as a normal hexagon nut - across the flats of the hexagon. Take a look at the diagram to see how to correctly measure and size a 12-point nut.
