3-1/16" X 10M Weld Neck Flange (Api 6A, Psl 2, Temptrating– U, Material Class - Ee) , 3-1/16" X 10M Clamp Forconnecting Hub (Api 16A, Psl 2, Tempt Rating– U, Materialclass - Ee) , Flange-Hub Spool Adapter (Flange-Hubcrossover Assembly) 3-1/16" X 10M Flange X 3-1/16" X 10Mhub (A Quantity: 54