... float shoe and float collar 2) PDC drillable 3) Thread: BTC/ LTC / STC 9- 5/8" casing float shoe & float collarA rounded ... 5000 PSI The normal specifications: 13-3/8" float collar N80, 68 ppf, BTC 9-5/8" float collar N80, 47 ppf ... , BTC 7" float collar N80, 29 ppf, BTC 9 5/8" casing float shoe and float collar