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Best wire size

Best wire size Per ASME B1.7-2006 Definitions [ back to main page ]

Best wire size: for symmetrical threads, the size of a wire that would touch at the pitch diameter on a basic profile thread of zero lead angle. For non-symmetrical threads, governed by ASME B1.9, the best wire size will contact the load flank at a point twice the distance above the pitch line that the contact point on the clearance flank is below the pitch line.

 

Original Posting: 3/20/2012
Last Revision:
Error corrections in, or comments about, the above data can be sent to: gageguy@gagecrib.com

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