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This is the actual cut through sample of a the TKC 4040 NU connection which was  over torqued by  approximately 150 percent on an offshore well in Indonesia.

The TKC 4040-NU’s shallow taper and thread height leaves maximum metal on the end of the pin to deal with make-up loads.

TKC 4040-NU CONNECTION PROFILE

TYPICAL NU API PIN PROFILE

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