K 1500 Suburban 4WD V8-5.3L VIN Z Flex Fuel (2003)
Wheel Fastener: Description and Operation
METRIC WHEEL NUTS AND BOLTS
Metric wheel/nuts and bolts are identified in the following way:
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The wheel/nut has the word Metric stamped on the face.
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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.
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M = Metric
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12 = Diameter in millimeters
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1.5 = Millimeters gap per thread
