Metric wheel/nuts and bolts are identified in the followingway:
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 areindicated by the following example: M12 x 1.5.
M = Metric12 = Diameter in millimeters1.5 = Millimeters gap per threadFlushing
Special ToolsJ 41447 R-134A A/C Tracer Dye – Box of 24J 42220 Universal 12V Leak Detection LampJ 43600 ACR 2000 Air Conditioning Service CenterJ 45268 A/C Flushing Adapter KitNote:Flushing with the J 43600 ACR 2000 Air Conditioning Service Center is not intended to remove metal from the A/C system ...