| http://www.w3.org/ns/prov#value | - The connection of claim 1 or claim 2 wherein said thread leading-flank angle, for an externally-threaded tubular member with a pitch diameter increasing from the leading edge to the trailing edge, is a negative angle ranging from about zero degrees to about 50 degrees and said thread following flank angle ranges from a zero degree angle to a negative angle of about 8 degrees.
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