
API - OIL THREADS EXTERNAL & INTERNAL - API BUTTRESS CASING (ANSI B1.9-1973 CLASS 2) Regular Type Application: Oil & Gas Indusrty *Right hand (external) shown TT9030 Thread Insert IC TPI L Taper Connection Grade Designation Hand Type Type (inch) (inch) IPF Number 22ER5BUT0.75 External Right Regular 0.500 5 0.866 0.750 4-1/2"/13-3/8" 22ER5BUT1.0 External Right Regular 0.500 5 0.866 1.000 16"/20" 22IR5BUT0.75 Internal Right Regular 0.500 5 0.866 0.750 4-1/2"/13-3/8" 22IR5BUT1.0 Internal Right Regular 0.500 5 0.866 1.000 16"/20" =P =M =K =N =S =H 1239