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The Clear Card Thread Checker is a clear transparent card with the standard thread pitches imprinted on it. It is very easy to line the printed thread marks with the actual threads you are wanting to identify. The marks run off the left edge so it is...

HexSizer Clear Card Thread Checkers are clear plastic cards with the variety of standard thread pitches imprinted on them. Simply align the profile with the thread pitch to confirm the threads of a fastener. One card shows the thread pitch profiles for...