Metric wheel/nuts and bolts are identified in the following way:
• | The wheel/nut has the word Metric stamped on the face. |
• | The letter M is stamped on the end of the wheel bolt. |
The thread sizes of metric wheel/nuts and the bolts are indicated by the following example: M12 x 1.5.
• | M = Metric |
• | 12 = Diameter in millimeters |
• | 1.5 = Millimeters gap per thread |