Virtual functional diameter, taper thread Per ASME B1.7-2006 Definitions [ back to main page ]
Virtual functional diameter, taper thread: (ISO term) when a thread size of a taper thread is verified by measurement of a taper thread plug, ring gage, or equivalent, having a basic gage notch, surface, or limit notches, andwhich is within specified gage limits or tolerances, a determination is made that the virtual (functional) diameter throughout the specified size limits. The thread size, thus verified, may be designated the taper thread virtual diameter.
Original Posting: 3/20/2012
Last Revision:
Error corrections in, or comments about, the above data can be sent to: gageguy@gagecrib.com
Gage Crib Worldwide, Inc.
6701 Old 28th St SE, Suite B
Grand Rapids, MI 49546-6937
Phone: 001-616-954-6581 • Fax: 001-616-954-6583 CONTACT FORMS & INFO