Product Description
Identify the thread on that mystery bolt.
Measure its diameter and then, using a thread gauge, measure its thread pitch. Compare this information to our thread chart to determine what thread your bolt or screw is.
Each leaf of the gauge has the number of teeth per inch stamped on it.
(Image is of a Whitworth gauge)
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Thread gauge works
Performs its job well, VERY handy for a car restoration. Using with the Sutton Ezi-size gauge to identify fasteners.
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