Grade TT9030 API - OIL THREADS EXTERNAL & INTERNAL - API BUTTRESS CASING (ANSI B1.9-1973 CLASS 2) Regular Type *Right hand (external) shown Application: Oil & Gas Indusrty Designation ThreadType Hand InsertType IC TPI L Taper(inch)(inch)IPFConnectionNumber 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